This document lists over 200 potential on-page, off-page, technical, and other ranking factors that search engines may use to evaluate websites and determine search rankings. It covers categories like on-page SEO, backlinks, user interaction, social signals, brand factors, and spam/unnatural links. The goal is to provide a comprehensive overview of what search engines optimize for and how websites can improve their discoverability.

2. Country TLD
Extension

3. Domain Age

4. Domain History

5. Domain
Registration Length

6. Exact Match
Domain

7. Keyword
Appears in TLD

8. Keyword As First
Word in Domain

9. Keyword in
Subdomain Name

10. Penalized WhoIs
Owner

11. Public vs Private
WhoIs Info

12. On Page SEO
Factors
On Page SEO Factors

13. Affiliate Links

14. Broken Links

15. Bullets and Lists

16. Content Length

17. Duplicate
Content

18. Grammar and
Spelling

19. Helpful Supporting
Content

20. Page Updates

21. HTML Errors /
W3C Validation

22. Human Editors

23. Image
Optimization

24. Keyword in H1
Tag

25. Keyword Density

26. Keyword in
Description Tag

27. Keyword in H2-3
Tags

28. Keyword in Title
Tag

29. Keyword in URL

30. Keyword
Frequency

31. Keyword
Proximity

32. Keyword Order

33. Latent Semantic
Indexing Keywords in
Content (LSI)

34. LSI Keywords
Description and Title

35. Magnitude of
Updates

36. Multimedia
Usage

37. Number of
Internal Links

38. Number of
Outbound Links

39. Outbound Link
Quality

40. Outbound Link
Theme

41. Page Age

42. Page Category

43. Host Domain
Authority

44. Page Loading
Speed via Chrome

45. Page Loading
Speed via HTML

46. Page PageRank

47. Parked Domains

48. Page Sitemap
Priority

49. Quality of
Internal Links

50. Quantity of Other
Ranked Pages

51. Reading Level

52. Time of Content
Updates

53. References &
Sources

54. Rel=Canonical
Usage

55. Syndicated
Content

56. Title Tag Begins
with Keyword

57. # of Outbound
Links

58. Length of URL

59. Path of URL

60. Permalink String

61. User Friendliness

62. WordPress Tags

63. WordPress
Categorization

64. Sitemap
Pipelining

65. On Site SEO
Factors

66. Breadcrumb
Navigation

67. Contact Us Page

68. Value Driven
Content

69. TrustRank

70. Duplicate Meta
Information

71. Mobile
Optimized

72. Number of Pages

73. Sitemap

74. Server Location

75. Site Architecture

76. Site Updates

77. Site Uptime

78. Site Usability

79. SSL Certificate

80. Terms of Service
& Privacy

81. Google Analytics
and GWT

82. Use of YouTube

83. Content
Usefulness

84. User Reviews / External
Site Reputation

85. Backlink SEO
Factors

86. Sponsored Links

87. # of Linking
Pages

88. # of Linking Root
Domains

89. # of Links from
Separate IPs

90. Alt Tags for
Images

91. Authority of
Linking Domain

92. Authority of
Linking Page

93. Backlink Age

94. Backlink Anchor
Text

95. Backlink Similar
Words

96. Contextual Links

97. Country TLD of
Linking Domain

98. Diversity of Link
Types

99. DMOZ Listing

100. # of 301
Redirects

101. Guest Posts

102. Forum Profile
Links

103. Internal Link
Anchor Text

104. Keyword in Title

105. Link from
Authority Sites

106. Link Location in
Content

107. Link Location on
Page

108. Link Title
Attribution

109. Link Velocity

110. Wikipedia Source

111. Linking Domain
Age

112. Linking
Relevancy

113. Links from .gov
or .edu

114. Links from “Hub”
Pages

115. Links from 301

116. Links from Bad
Sites or Link Farms

117. Links from
Competitors

118. Links from Real vs
Fake Sites (Flogs)

119. Links to Homepage
Domain

120. Natural Link
Profile

121. Nofollow Links

122. Number of Outbound
Links on Page

123. Page Level
Relevancy

124. General Sentiment
around Links

125. Quality of
Linking Content

126. Reciprocal Links

127. Schema.org Markup
(Ratings, Price,
Reviews)

128. Sitewide Links

129. Social Shares of
Linking Page

130. TrustRank of Site
Linking to You

131. User Generated
Content Links

132. Word Count of
Linking Content

133. User Interaction
Factors

134. Blocked Sites

135. Bounce Rate

136. Chrome
Bookmarks

137. Direct Traffic

138. Google Toolbar
Data

139. Long Clicks vs
Short Clicks

140. Number of
Comments

141. Organic Click Through
Rate per Keyword

142. Organic CTR on
All Keywords

143. Returning Traffic

144. Miscellaneous
Rules

145. Big Brand
Preference

146. DMCA
Complaints

147. Domain Diversity

148. Easter Egg
Results

149. Geo Targeting

150. Google News
Box Search

151. Google+ Circles

152. Image Results

153. Local Results

154. Personal User
Browsing History

155. Query Diversity

156. Query Freshness

157. Safe Search

158. Shopping Results

159. Single Site Results
for Brands

160. Transaction
Based Searches

161. User Search
History

162. Social Signals

163. Authority of User
Facebook Accounts

164. Authority of User
Google + Accounts

165. Authority of Twitter
User Accounts

166. Facebook Shares

167. Known Author

168. # of Facebook
Likes

169. # of Google +1

170. # of Tweets

171. Social Signal
Relevancy

172. Votes on Social
Sharing Sites

173. Brand Factors

174. Brand Mentions
on News Sites

175. Brand Name
Anchor Text

176. Branded Facebook
Page with Likes

177. Branded
Searches

178. Branded Twitter Profile
with Followers

179. Physical Location with
Google Business Listing

180. Co-Citation

181. Count of RSS
Subscribers

182. Employees on
LinkedIn

183. Spamminess of
Social Media

184. Real LinkedIn
Company Page

185. Tax Paying
Business

187. Ads Above Fold

188. Affiliate Site

189. AI Generated
Content

190. Blacklisted IP
Address

191. Cloaking

192. Cloaking Affiliate
Links

193. Excess
PageRank-ing

194. Links to Bad IP
Pools

195. Meta Tag
Keyword Stuffing

196. Page Over-
Optimization

197. Keyword Stuffing

198. Panda Penalty

199. Popups or
Distracting Ads

200. Site Over-
Optimization

201. Off Page Spam
Signals

202. Disavow Tool

203. Google Sandbox

204. Hacked Anchor
Text

205. High Percent of
Low Quality Links

206. Links from the
Same Server IP

207. Manual Penalty

208. Non Relevant
Domain Linking

209. Penguin Penalty

210. Reconsideration

211. Selling Links

212. Temporary Link
Schemes

213. Temporary Spam
Link Schemes

214. The Google
Dance

215. Dance Monkey,
Dance

216. Unnatural
Backlinks

217. Unnatural Links
Warning

218. Just Be Real…
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