139 Related Factors of search engine algorithms [Seo]

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Search engines are constantly changing. So the rules are constantly changing.

1. Use of keywords on website title

2. Use of keywords in Meta description

3. Use of keywords in META keywords

4. Use of keywords in H1, H2, and H3 labels

5. Use of keywords in website domain names

6. Use of keywords in the page url

7. Relevance of keywords and page content

8. Page age

9. Page size (less than 100 k recommended)

10. page content quality

11. New Page Generation Rate

12. Use of static pages (JS is not included by Google)

13. Keyword optimization of the image alt tag

14. Internal Link Structure of the website

15. Number of website records

16. website structure level

17. Whether the website is confirmed by Google webmaster Central

18. originality of the website

19. website updates.

20. Number of external connections (reverse connections and friendship connections)

21. The Anchor text of the external link

22. Link weight and quality of external link pages

23. The external link page is on the website of the relevant topicCommunityLink weight in

24. Creation and update time of external links

25. Special Characteristics of external link website domain names

26. PR value of the external link website

27. Correlation Between the subject, page content, and Keywords of external links

28. External link Generation Rate

29. Age of external link

30. Domain Name age (calculated from index by search engine)

31. Special Characteristics of domain names (. CN. com. org .com.cn)

Rational use of level 32 domain names

33. The number of occurrences of the "/" symbol in the URL (the depth of the webpage)

34. Text surrounding the link

35. correctness of spelling and grammar

36. htmlCodePass W3C certification?

37. The number of times a user searches for a website (click rate)

38. Manually assign weights

39. server stability, and the region where the server is placed

40. Whether the Server IP address has been penalized (Http://whois.webhosting.info/ip/)

41. Website Title Design

1. The title of each page should not be the same and consistent with its own content.

2. The website title design is clear. It is recommended that the number of keywords on the page should not exceed 1 ~ every day ~ 2

3. The title design should not be too long. Do not pile up the title within 25 Chinese characters.

42. Design of website Meta

1 ). Description Design

2 ). Keywords Design

3 ). Note when creating an English website. The production software mode is encoded as windows-1252

43. Update and submit the website sitemap from time to time.

44. website navigation map

1 ). "Breadcrumb" Lu Jin

2 ). Clear navigation bar.

3 ). Use website Map

45. Rich page keywords and user experience.

46. export links less than 100

47.robots.txt can be reasonably written (many sites often include a lot of images for a while, but a major factor is here .)

48. Use of annotations in hyperlinks.

49. Open Directory for website login

50. Export link quality.

51. All keyword density in the body

52. Independent keyword density

53. Keyword font size

54. Two or more keywords need to consider their closeness

55. keyword phrase Sequence

56. Whether the keywords are prominent

57. Ensure the site link is valid

58. Tree Structure

Do not link to linkfarm outside site 59

60. The link text outside the site contains keywords

61. Use a fixed link

62. Ensure that the out-of-site link is valid

63. No more than 100 out-of-Site Links

64. Use the "-" connection keyword in the URL

65. Update Ratio

66. Link update

67. Number of favorite websites.

68. Use the same root keyword

69. Use semantic-related keywords

70. Potential semantic index

71. URL Length

72. website establishment time

73. Comparison between page time and website time

74. text written on the Image

75. Website Alliance

76. Oop, penalty for over-Optimization
77. Is there a bad link to a friendship website?

78. Use meta tag to redirect

79. Use poor and low-level languages

80. Keywords of poison?

81. Excessive cross-linking?

82. Use keywords to fill all the places that can be stuffed

83. Scattered keyword distribution, without clear themes

84. Modify the page too quickly

85. Is the link modified too quickly?

86. Is it a dynamic webpage?

87. Is there too much JavaScript?

88. use flash?

89. Use framework?

90. Turn the robot off in robots.txt

91. one pixel Link

92 invisible text

93. Multiple Portals

94. A large number of Duplicated content

95. HTML code does not comply with the specifications

96. Page import link above PR4

97. import link increase speed

98. import link quality and PageRank

99. The text of the import link contains keywords

100. import link time

101. The text of the import link is frequently changed.

102. Popularity of Import Links

103. Number of links on the import link page

104. Ranking of links on the import link page

105. keyword density on the import link page

106. import link page title

107. import link from expert website

108. The import link page has topics related to this page

109. The import link page has nothing to do with this page topic

110. Image hotspot links

111. Javascript Link

112. included by dmoz

113. Does the topic match the dmoz category?

114. included by Yahoo

115. included by looksmart

116. Included in Inktomi

117. Indexed by other directory websites

118. referenced by large websites

119. Long website establishment time

120. website directory

121. Website Map

122. page Click Ratio

123. Page stay time

124. Do you have any favorites?

125. Add/delete bookmarks

126. How can users leave and where to go

127. keywords used for searching and linking to pages

128. Website top-level domain name stay time

129. domain name registration time

130. formal cooperation websites

131. whether to purchase traffic

132. Temporary Link Analysis

133. Purchase Link

1) whether there is any contribution link on the page

2) whether a large number of inbound connections have been added in a short period of time

3) whether there is an inbound link on a highly pr-independent webpage

This is useful if you are not found or think of as cheating.

134. Ranking of superior webpages

135. Whether crawler spoofing exists

136. Domain Name Hijacking

137. Click Spoofing

138. Do not shut down or shut down when Google crawlers come.

139. The dead corner page of a large website