You probably know that Google uses more than 200 ranking factors in its algorithm.
But… what are they?
In this article we have put together a fairly comprehensive list of Google ranking factors.
We know that some sorting criteria are missing, but we also know that we cannot access the full list.
Some are proven
Some are controversial.
Others are speculations….
But all those that can be measurable are here.
Criteria related to the Domain
1.Age of the Domain : In this video , Matt Cuttus declares that:
“The difference between a domain that is 6 months old and one that is one year old is not great.”
In other words, they use the age of the domain … but it’s not really important.
2. Keywords in the domain. It doesn’t give the boost it used to, but having keywords in the domain still acts as a sign of relevance. After all, those keywords that appear in the domain name are still in bold.
3.Keyword as the first word in the domain. A domain that starts with your target keyword has an advantage over sites that do not have keywords in their domains. (or they have it in the middle or at the end of the domain)
Google has stated:
“The most valuable domains are normally paid for many years in advance, while the low value domains are renewed year after year. We could use the domain’s expiration date as a way to predict its legitimacy. “
5.Keyword in the Subdomain. The Moz 2011 report agreed that a keyword that appears in the subdomain can boost ranking:
6.History of the Domain. A site with volatile ownership (via WhoIs) or multiple crashes can tell Google to “reset” the site’s history, denying links pointing to the domain. Or even a domain that was penalized in the past can affect the new owner.
7.Exact Match Domains. EMDs (Exact Match Domain) can still give you an advantage… it is a quality site. But if it turns out to be a poor quality site, it is vulnerable to the EMD update :
8.Public WhoIs vs. Private. Private WhoIs information can be a sign of “Something to Hide”. Matt Cutts is quoted stating in Pubcon 2006:
“… When I checked the whois of all of them they had the privacy protection for Whois activated. This is rare. Having the protection activated is not a bad thing automatically, but if you add it to other factors, we are surely talking about a different type of webmaster than the typical person who has only one domain … “
9.Owner of WhoIs penalized. If Google identifies a particular person as a spammer, it makes sense for them to investigate other sites owned by that person.
10.Country TLD Extension. Having a country code top level domain (.es, .mx, .cn, .pt, .ca) helps in ranking the site for a particular country … but limits the site’s abilities for global ranking.
The title tag is the second most important content on the web page (in addition to the page content) and therefore sends a strong SEO signal on the page .
12.Title Tag Begins with Keywords. According to Moz Data , title tags that start with a keyword tend to perform better than title tags with the keyword toward the end of the tag.
13.Key Word in the Description of the Label. Another relevant sign. Not especially important now, but it can help increase your CTR, click through rate.
15.The Keyword is the most used term on the page. Having a keyword that appears more than any other possibly acts as a relevance signal.
17.Key Word Density. Although not as important as it once was, keyword density is still something that Google uses to determine the theme of a web page. But overdoing it can hurt your rankings.
17B. The tables of contents help Google to better understand the content of your page, here is an example of what is a table of contents. For WordPress you can create them with this plugin .
18.Latent Semantic Indexing Keywords in Content (LSI). LSI keywords help search engines extract meaning from words with synonyms and related words. For example, Apple the technology brand VS Apple (Apple in English). The presence / absence of LSI probably also acts as a sign of content quality .
19.LSI Keywords in the Title and Description Tags. As with web page content, LSI keywords help Google distinguish between synonyms.
It can also act as a sign of relevance.
19B.Pages that cover a topic in depth. Pages with longer content that cover all the points to be covered in a topic rank better than pages that only partially cover a topic.
20B.Loading time in Google Chrome. Google may also be using this information to know how fast a specific web page loads and thus affect its ranking.
20C.Use AMP. Having a version of your page optimized for mobile devices can considerably improve ranking and also make your page appear in the Google News carousel.
20D. Google Hummingbird: This “ Algorithm Change ” helps Google go beyond keywords. Thanks to Hummingbird now Google can better understand the theme of your website.
21.Duplicate Content. Identical content on the same site (even slightly modified) can negatively influence the search engine visibility of a site.
22.Rel = Canonical: When used correctly , the use of this tag can prevent Google from considering pages with duplicate content.
23.Page Loading Speed through Google Chrome. Google can also use Chrome user data to better manage a page’s load time as this takes into account server speed, CDN usage, and other non-HTML related site speed cues.
24.Optimization of images. Images on the page send important relevance signals to search engines via their filename, alt text, title, description, and structure.
25.Novelty of Content Updates. The Google Caffeine update favors recently updated content, especially for urgent searches.
By highlighting the importance of this factor, Google shows the update date for certain pages.
26.Magnitude of Content Updates. The importance of edits and changes is also a factor of fresh content. Adding or removing entire sections is a more important update than changing the order of some words.
27.Historical updates of the page. How often has the page been updated over time? Daily, weekly, or every 5 years? The frequency of page updates also plays a role in freshness.
28.Prominence of Keywords. Having a keyword in the first 100 words of content on a page seems to be a sign of significant relevance.
29.Keyword In H2, H3 Tags. Making your keyword appear as an H2 or H3 caption can be another sign of little relevance.
30.Order of keywords. An exact match of a search engine’s keyword in the content of a page; generally, it will rank higher than the same keyword phrase in a different order. For example: consider a search for: “cat shaving techniques.” A page optimized for the phrase “cat shaving techniques” will rank better. This is a good illustration of why keyword research is really important.
31.Quality of the outgoing link. Many SEO experts think that linking to authority sites helps to send trust signals to Google.
32. Outgoing Link Issue. According to Moz , search engines can use the content of the pages you link to. For example, if you have an automobile page that links to movie related pages; This can tell Google that your page is about the movie Cars, not the car.
33. Grammar And Spelling. Proper grammar and spelling are a sign of quality, though Cutts gave mixed messages in 2011 about whether this was important or not.
34. Syndicated Content. Is the content of the page original? If it is deleted or copied from an indexed page, it will not rank as well as the original or end up in its companion index .
35. Helpful Supplemental Content: According to a now-public Google evaluation guidelines document , helpful supplemental content is an indicator of a page’s quality (and therefore Google’s ranking). Examples include currency converters, loan interest calculators, and interactive recipes.
36. Number of Outgoing Links . Too many OBL dofollow can “filter” the PageRank, which can damage the rankings of that page.
37. Multimedia . Pictures, videos, and other multimedia elements can act as a signal of content quality.
38. Number of internal links pointing to the page: The number of internal links to a page indicates its importance in relation to other pages on the site.
39. Quality of the Internal Links that point to the page : The internal links of authorized pages in the domain have a stronger effect than the pages with little or no PR.
40. Broken Links : Having too many broken links on a page can be a sign of a neglected or abandoned site. Google’s ranking guidelines document uses broken links to assess the quality of a home page.
41.Reading level: There is no doubt that Google estimates the reading level of web pages. In fact, Google used to give you reading level statistics:
42. Affiliate Links : Affiliate links probably won’t hurt your ranking. But if you have too many, Google’s algorithm can pay more attention to other quality signals to make sure it is not an “affiliate-only site”.
URL and HTML
43. Html Errors / W3c Validation: Many HTML errors or sloppy coding can be a sign of a poor quality site. While controversial, many in SEO believe that WC3 validation is a weak quality signal.
44. Domain Authority of the Page Host: If everything remains the same, a page in an authorized domain will have a higher ranking than a page in a domain with less authority.
45. Pagerank of the Page : Not perfectly correlated. But in general, higher PR pages tend to rank higher than lower PR pages.
46.URL length : The Search Journal points out that excessively long URLs can impair search visibility.
47. URL path : A page closer to the home page can get a slight increase in authority.
48. Human Editors: Although it was never confirmed, Google has filed a patent for a system that allows human editors to influence SERPs.
49. Page Category : The category in which the page appears is a sign of relevance. A page that is part of a closely related category should get a relevancy boost; compared to a page that is presented in an unrelated or less related category.
50. WordPress Tags : Tags are WordPress- specific relevance signals .
According to Yoast
51. Keyword in URL: Another important sign of relevance.
52. URL string : Google reads the categories of the URL string and can provide a thematic signal on the topic of the page:
53.References and Sources : Citing references and sources, as research documents do, can be a sign of quality. The Google Quality Guidelines state that critics should be attentive to sources when consulting certain pages: “This is an issue where experience and / or authoritative sources are important …”. However, Google has denied that they use external links as a ranking signal.
54. Bullets and Numbered Lists : Bullets and numbered lists help divide your content for readers, making them easier to use. Google will probably accept and may prefer content with bullets and numbers.
55.Page Priority in the Site Map: The priority given to a page through the sitemap.xml file can influence the classification.
56. Too many Outgoing Links : It is also a reason for penalty
Usability and utility
57. Amount of other Keywords ranked on the page : If the page is ranked for several other keywords, it can give Google an internal quality mark.
58. Page Age: Although Google prefers new content, a previous page that is regularly updated can outperform a newer page.
59. User Friendly Design : Quoting the Google Quality Guidelines Document once again:
60.Parked Domains : A Google update in December 2011 reduced the search visibility of parked domains.
61. Useful Content : As Backlinko reader Jared Carrizales pointed out , Google can distinguish between “quality” and “useful” content .
62. Content Provides Unique Value and Insights : Google has stated that they are looking for sites that do not bring anything new or useful to the table, especially small affiliate sites.
63. Contact Page . The Google quality document mentioned above indicates that they prefer sites with an “appropriate amount of contact information”.
64. Domain Trust / Trustrank. The confidence of the site, as measured by the number of links to your site from sites has high reliability, is a ranking factor of great importance. You can read more about TrustRank here .
65. Site Architecture. A well-organized site architecture (especially a silo structure) helps Google organize its content thematically.
66. Site Updates . How often a site is updated, especially when new content is added to the site, is a freshness factor throughout the site.
67. Number of Pages. The number of pages a site has is a sign of weakness or authority. At the very least, a large site helps distinguish it from slim affiliate sites.
68. Presence of Sitemap . A sitemap helps search engines index your pages more easily and more completely, improving visibility.
69. Time of Activity of the Site . Lots of downtime from site maintenance or server issues can damage your rankings (and can even lead to deindexing if left uncorrected).
70. Server Location: The server location can influence the location of your site in different geographical regions. Especially important for geospecific searches.
Security and Privacy
72. Terms of service and privacy pages. These two pages help tell Google that a site is a trusted member of the Internet.
73. Duplicate Meta-Information on the Site. Duplicate meta-information on your site can reduce all the visibility of your page.
74. Breadcrumb Navigation . This is an easy-to-use style of site architecture that helps users (and search engines) know where they are on a site:
75.Mobile Optimized : Google’s official position on mobile devices is to create a responsive site. Responsive sites are likely to get a head start on mobile searches. In fact, they now add “mobile friendly” tags to sites that display well on mobile devices . Google also began penalizing mobile search sites that are not mobile friendly.
76. YouTube: There is no doubt that YouTube videos receive preferential treatment in the SERPs (probably because Google is the owner):
In fact, Search Engine Land found that YouTube.com traffic increased significantly after Google Panda .
77. Site Usability: A site that is difficult to use or navigate can damage ranking by reducing time on site, pages visited and bounce rate . This can be an independent algorithmic factor derived from massive amounts of user data.
78. Use of Google Analytics and Google Webmaster Tools : Some think that having these two programs installed on your site can improve the indexing of your page. They can also directly influence rank by giving Google more data to work with (i.e. a more accurate bounce rate, whether you’re getting referral traffic from your backlinks , etc.).
79. User Reviews / Site Reputation: A page located on review sites like Yelp.com and RipOffReport.com will likely play a significant role in the algorithm. Google even published a rarely candid sketch of its approach to user reviews after a glasses site was caught scamming customers in an effort to get backlinks.
80. Domain Age Linkage: Backlinks from old domains can be more powerful than new domains.
81.No. of Root Connection Domains : The number of referring domains is one of the most important ranking factors in Google’s algorithm, as can be seen in this table from Moz (the lower axis is the SERP position ):
82. No. of Separate Class C IP Address Links : Separate class c IP address links suggest a greater variety of sites linking to you.
83. Number of Link Pages: The total number of link pages, even if some are in the same domain, is a ranking factor.
84.Alt Tag (For Image Links) : Alternative text is an anchor text version of an image.
85. .Edu O .Gov Domain Links : Matt Cutts has stated that TLD does not take into account the importance of a site. However, that doesn’t stop SEOs from thinking that there is a special place for .gov and .edu top-level domains.
86. Authority of the Link Page : The authority (PageRank) of the referring page is an extremely important ranking factor.
87. Binding Domain Authority : The authority of the referring domain can play an independent role in the importance of a link (that is, a PR2 page link from a site with a PR3 main page may be worth less than a PR2 page link from PR8 Yale.edu).
88.Competitor Links : Links from other pages ranked in the same SERP may be more valuable to a page’s rank for that particular keyword.
89.Social Actions of the Reference Page : The number of social actions at the page level can influence the value of the link.
89. Social Actions of the Reference Page : The number of social actions at the page level can influence the value of the link.
90. Links from Bad Sites: Links from “bad sites” can damage your site .
91. Guest Posts : Although guest posts can be part of a white hat SEO campaign, links from guest posts, especially in an author bio, may not be as valuable as a contextual link in it. page.
92. Links to the Page of a site: Links to the home page of a reference page can be especially important to assess the weight of a site and, therefore, a link.
Classification according to types of link
93. Nofollow Links: One of the most controversial topics in SEO . Google has suggested that they do it too in certain cases. Having a certain% nofollow links can also indicate a natural versus unnatural link profile.
94. Diversity of Link Types: Having an abnormally large percentage of your links coming from a single source (ie forum profiles, blog comments) can be a sign of web spam. On the other hand, links from various sources are a sign of a natural link profile.
95. “Sponsored Links” or Other Words About the Link: Words such as “sponsors”, “link partners” and “sponsored links” can decrease the value of a link.
96. Contextual links: The links embedded in the content of a page are considered more powerful than the links on an empty page or found in another part of the page.
A good example of contextual links is guestographics backlinks .
97. Excessive 301 Redirects to the Page. Links from 301 redirects dilute some (or even all) public relations, according to a webmaster help video .
98.Backlink Anchor Text : As noted in this description of Google’s original algorithm:
Obviously the anchor text is less important than before (and probably a sign of web spam). But it still sends a strong signal of relevance in small doses.
99. Inner Link Anchor Text: Inner link anchor text is another relevancy signal, although it is probably weighed differently than backlink anchor text.
100. Link Title Attribution: The link title (the text that appears when you hover the mouse over a link) is also used as signals of weak relevance.
Location of links
101. Country TLD of Referring Domain : Getting links from country-specific top-level domain extensions (.de, .cn, .co.uk) can help you rank higher.
102. Location of the Link in the Content. Links at the beginning of content have a slightly higher weight than links placed at the end of content.
103. Link Location on the Page : The site where a link appears. In general, the links embedded in the content of a page are more powerful.
104. Linking the Relevance of the Domain. A link from a site in a similar niche is significantly more powerful than an unrelated link. That is why any effective SEO strategy today focuses on getting relevant links.
105. Relevance at the Page Level . The Hilltop algorithm states that a link from a page that is closely linked to the content of the page is more powerful than a link from an unrelated page.
Sources and other criteria on links
106. Text around an Opinion Link : Google has probably discovered if a link to your site is a recommendation or part of a negative review. Links with positive feelings around you probably carry more weight.
107. Keyword in the Title: Google gives a special love to the links on the pages that contain the keyword of their page in the title (“Experts linking to experts”).
108. Positive Link Speed: A site with positive link speed usually receives a SERP increase.
109. Negative Link Speed: Negative link speed can significantly reduce rankings, as it is a sign of declining popularity.
110. Links from “Hub” Pages: Aaron Wall states that obtaining links from pages that are considered the main resources (or centers) on a certain topic receive special treatment.
111. Link from Authorized Sites: A link from a site considered an “authority site” will probably have better results than a link from a small microniche site.
112. Linked to a Wikipedia Source: Although links are nofollow, many think that getting a Wikipedia link gives you a little more confidence and authority in the eyes of search engines.
113. Co-Occurrences. The words that tend to appear around your backlinks help tell Google what that page is about .
114. Age of the Backward Link. According to a Google patent, older links have more ranking power than newly created backlinks.
115. Links from Real Sites Vs. Splogs : Due to the proliferation of blog networks, Google probably gives more weight to links from “real sites” than from fake blogs. They are likely to use brand cues and user interaction to distinguish between the two.
116. Natural Link Profile : A site with a “natural” link profile will occupy a prominent place and will last longer for updates.
117. Reciprocal Links : Google’s Link Schemes page lists “Excessive Link Swapping” as a link scheme to avoid.
118. Links of User Generated Content: Google can identify links generated from UGC against the actual owner of the site. For example, you know that a link from the official WordPress blog .com en.blog.wordpress.com is very different from a link from besttoasterreviews.wordpress.com.
119. Links From 301 : Links from 301 redirects can lose a bit of juice compared to a direct link. However, Matt Cutts says that a 301 is similar to a direct link.
120.Schema.Org Microformats: Pages that support microformats can be ranked higher than pages without it.
This can be a direct boost or the fact that microformat pages have a higher SERP CTR:
121. DMOZ Listing: Many believe that Google gives DMOZ sites a certain extra trust.
122. Confidence Classification of the Link Site: The reliability of the linking site determines how much “Confidence Classification” transfers to it.
123. Number of Outgoing Links on the Page: PageRank is finite. A link on a page with hundreds of OBLs passes less PR than a page with only a few OBLs.
124. Links to the Forum Profile: Due to industrial spam, Google may significantly devalue the links of the forum profiles.
125. Word Count of Linking Content: A link from a 1000 word post is more valuable than a link within a 25 word snippet.
126. Quality of Linking Content : Links to poorly written or spun content do not pass as much value as links to well-written content and enhanced multimedia.
Sitewide Links : Matt Cutts has confirmed that Sitewide Links are “compressed” to count as a single link.
128. Original Click-through Rate for a Keyword . The pages that get the most CTR clicks can get a SERP boost for that particular keyword.
129. Organic CTR for all Key Words . The organic CTR of a page (or site) for all the keywords that it ranks can be a signal of human-based user interaction.
130. Bounce Rate : Not everyone in SEO agrees with the bounce rate, but it can be a way for Google to use its users as quality testers (pages where people bounce quickly are probably not very good).
131. Direct Traffic: It was confirmed that Google uses data from Google Chrome to determine whether or not people visit a site (and how often). Sites with a lot of direct traffic are probably of higher quality than sites that receive very little direct traffic.
132. Repeat Traffic: They can also see if users return to a page or site after visiting them. Sites with recurring visitors can get a Google ranking boost.
133. Blocked Sites: Google has suspended this function in Chrome. However, Panda used this feature as a sign of quality.
134. Chrome bookmarks : We know that Google collects usage data from the Chrome browser . Pages that are bookmarked in Chrome can get a boost.
135. Google Toolbar Data : Danny Goodwin of Search Engine Watch reports that Google uses toolbar data as a ranking signal. However, in addition to page load speed and malware, it is not known what kind of data they collect from the toolbar.
136. Number of Comments : Pages with many comments can be a sign of user interaction and quality.
137. Time of permanence: Google pays a lot of attention to the “time of permanence”. That is, how long people spend on your page when it comes from a Google search.
This is also known as “long clicks vs. short clicks.” If people spend a lot of time on your site, that can be used as a sign of quality.
138. Updates : Google gives a boost to the newest pages for certain searches .
139. The Query deserves Diversity : Google can add diversity to a SERP for ambiguous keywords, such as “Ted”, “WWF” or “ruby”.
140. User Navigation History : The sites you visit frequently while connected to Google get a SERP increase for their searches.
141. User Search History : Search results influence your search history on subsequent searches . For example, if you search for “reviews” and then search for “toasters,” Google is more likely to show the toaster review sites higher in the SERPs.
142. Geographical Orientation: Google gives preference to sites with local server IP and country-specific domain name extension.
- Safe Search: Search results with gross, rude words, or adult content will not appear for people with Safe Search turned on.
Social media and search history
144. Google + circles : Google shows better results for authors and sites that you have added to your Google Plus circles
145. DMCA Complaints : Google “minimizes” the pages with DMCA complaints .
146. Domain Diversity : The so-called ” Bigfoot Update ” supposedly added more domains to each SERP page.
147. Transactional Searches: Google sometimes shows different results for keywords related to purchases, such as flight searches.
148. Local Searches: Google often ranks Google+ Local results above “normal” organic SERPs.
149. Google News Box: Certain keywords activate a Google News box
150. Big Brand Preference : After the Vince update , Google started pushing big brands for certain short-tail searches.
Results and accounts
151. Shopping Results : Google sometimes shows Google Shopping results in organic SERPs:
152.Image Results . Google, reduce our image result listings for searches on Google Image Search.
153. Results of “Easter Eggs” . Google has about a dozen results for Easter eggs . For example, when you Google “Atari Breakout”, the search results turn into a game.
154. Results of Unique Sites for Brands. Brand or domain keywords show multiple results from the same site .
155. Number of tweets . Like links, the tweets a page has can influence its rank .
156. Twitter User Accounts Authority. Tweets from aging, authority Twitter profiles with a lot of followers (like Justin Bieber) are likely to have more effect than tweets from new, low-influence accounts.
157. Number of likes on Facebook . Although Google cannot see most Facebook accounts. They likely consider the number of Facebook likes a page receives as a weak ranking signal.
158. Facebook shares . Facebook shares, because they are more similar to a backlink, can have a stronger influence than Facebook likes .
159. Authority of Facebook User Accounts: As with Twitter, Facebook shares and “Likes” that come from popular Facebook pages may have more weight.
160. Pinterest Pins: Pinterest is an incredibly popular social media account with lots of public data. Google may consider Pinterest Pins a social signal.
161. Votes on Social Networking sites : Google may use actions on sites like Reddit, Stumbleupon and Digg as another type of social signal.
162. Number of Google +1 : Although Matt Cutts has stated that Google+ has no ” direct effect ” on rankings, it is hard to believe that they would ignore their own social network.
163. Authority of Google+ User Accounts : It is logical that Google weighs +1 from authorized accounts more than from accounts without many followers.
164. Known Authorship: In February 2013, Google CEO Eric Schmidt stated:
Although the Google+ authoring program has been closed. Google will likely use some form of authorship to determine influential content producers online.
Relevance as an influencer of a topic
165. Relevance of the Social Signal. Google probably uses relevant information from the account that shares the content and text surrounding the link.
166. Social Signs at Site Level . Site-wide social signals can increase the overall authority of a site, which will increase search visibility for all of your pages.
167. Brand Anchor Text. Branded anchor text is a simple but strong signal.
168. Brand searches. It’s simple: people search for brands. If people search for your site on Google, the search engine probably takes this into account when determining a brand.
169. The Site has a Facebook Page and Like . Brands tend to have Facebook pages with a lot of “likes”.
170. The Site Has a Twitter Profile with Followers . Twitter profiles with many followers indicate a popular brand.
171. Official Page of the Linkedin Company. Most of the real companies have Linkedin pages for companies.
172. Employees Listed on Linkedin. Rand Fishkin believes that having Linkedin profiles that say they work for your business is a brand sign.
173. Legitimacy of Social Network Accounts. A social media account with 10,000 followers is likely to be interpreted differently than one with 10,000 followers with a lot of interaction.
174. Brand Mentions on News Sites. Big brands are mentioned on Google News sites all the time. In fact, some brands even have their own Google News feed on the first page:
175. Co-appointments: Brands are mentioned without linking. Google is likely to view non-hyperlinked brands as a brand signal.
176. Number of RSS Subscribers. Consider the RSS Subscriber data as a mark of popularity / brand.
177. Physical location with the Local Map of Google+ : Real companies have offices. Google may look for location data to determine whether or not a site is a great brand.
178. It is a Tax Payment site : Moz reports that Google can see whether or not a site is associated with a business that pays taxes.
180. Links to unlawful business sites . Linking to “bad neighborhoods”, payment loan sites, can damage your search visibility.
181. Redirections . Sneaky redirects is a big no-no . If caught, you can get a site not only penalized, but also de-indexed.
182.Popup Windows or Distraction Ads . The official Google Rater guidelines document says that distracting pop-ups and ads are a sign of a low-quality site.
183. Excessive Site Optimization . It includes factors on the page like keyword stuffing, heading tag stuffing, excessive keyword decoration.
185. Ads above the page . The “Page Layout Algorithm ” penalizes sites with a lot of ads (and not a lot of content) in the top half of the page.
Contents of the links
186. Hiding the Affiliate Links . Going too far when trying to hide affiliate links can result in a penalty.
187. Affiliate Sites. It’s no secret that Google isn’t the biggest fan of affiliates . And many think that sites that monetize with affiliate links undergo additional scrutiny.
188. Self- Generated Content. Google is not a big fan of auto-generated content. If they suspect that your site is pulling computer-generated content, it could result in a penalty or removal.
189. Excessively sculpting the Pagerank. Going too far with PageRank creation , not following all outgoing links or most internal links, it can be a sign that the system is being messed with.
190. IP Address Marked as Spam . If your server’s IP address is marked as spam, it can damage all the sites on that server .
191. Meta Tag Spamming. Keyword stuffing can also happen in meta tags. If Google thinks you are adding keywords to your meta tags to play around with it; they can come to your site with a penalty.
192. Influx Unnatural Links . A sudden (and unnatural) influx of links is a surefire sign of fake links.
193. Penguin Penalty Sites that were hit by Google Penguin are significantly less visible in search.
194. Link Profile with a High Percentage of Low Quality Links. Many links from sources commonly used by black hat SEOs; they may be a sign that the system is being played with.
195. Linking the Domain Relevance. The famous MicroSiteMasters.com analysis found that sites with an abnormally high number of links from unrelated sites were more susceptible to Penguin.
196. Warning of Non-Natural Links . Google sent thousands of “Google Webmaster Tool Notifications of Unnatural Links Detected” messages. This generally precedes a ranking drop, although not 100% of the time .
197. links the IP of the same Class C . Getting an unnatural amount of links on the server IP can be a sign of link building.
198. Anchor Text “Poison”. Having “poisonous” anchor text pointing to your site can be a sign of spam or a hacked site. Either way, it can hurt your site’s ranking.
199. Manual Sanction. Google has been known to dole out manual fines, as in the well-publicized Interflora fiasco .
200. Sales Links . Selling links can definitely affect your toolbar PageRank and can hurt your search visibility.
201. Google Sandbox. New sites that receive a sudden influx of links are sometimes put into the Google Sandbox , temporarily limiting search visibility.
202. Google Dance . Google Dance may temporarily shake up the rankings. According to a Google patent , this can be a way for them to determine if a site is trying to play with the algorithm or not.
203. Deactivation Tool. Using the Disavow tool can eliminate a manual or algorithmic penalty for victims of negative SEO.
204. Request for Reconsideration. A successful reconsideration request can raise a penalty.
205. Temporary Link Schemes. Google has (apparently) caught up in people quickly creating and removing spam links. It is also known as a temporary link scheme .
This article is the translation of the Backlinko article.