139 related factors of search engine algorithm

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This article is also I read from the Internet to organize a bit, some things older ...

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

1. Keywords in the site title on the use of

2. Use of keywords in meta description

3. Use of keywords in meta keywords

4. Use of keywords in H1, H2, H3 tags

5. The use of keywords in the website domain name

6. Keywords in the page URL in the use of

7. Keywords and page content and relevance

8. Age of the page

9. Page size (recommended less than 100K)

10. Quality of page content

11. The rate at which new pages are generated

12. Static page Use (JS is not included in Google)

13. Keyword Optimization alt tags for pictures

14. Internal link structure of the website

15. Number of sites included

16. The structure level of the website

17. Whether the website is confirmed by Google Webmaster

18. Originality of website

19. Update of the website.

20. The number of external connections (reverse connection and friendship connection)

21. Anchor text for external links

22. The link weight, quality of the external link page itself

23. Links Weight of external link pages in the site community of related topics

24. Time to create and update external links

25. External link website domain name particularity

26. The PR value of the external link website

27. External link theme, page content and keyword relevance

28. The rate at which external links are generated

29. Age of External links

30. Domain name age (from the search engine index to start computing)

31. Domain name particularity (. cn. com. org. com.cn, etc.)

32. Reasonable use of Level 2 domain name

Number of occurrences of the "/" symbol in the URL (depth of Web page)

34. The surrounding text of the link

35. Correctness of spelling and grammar

Whether the HTML code is certified by the Consortium

37. Number of times users search the site (CTR)

38. Manual Weight

39. Server stability, location with server placement

40. Whether the server IP has been punished (http://whois.webhosting.info/ip/)

41. Website Title Design

1. Each page title is not the same, and is consistent with its own content.

2. The website title Design introduction clear, each day page involves the keyword best not to surpass 1~2 a

3. The title design not too long, 25 characters inside, remember not to accumulate.

42. Website Meta Design

1). Design of description

2). Design of keywords

3. You need to pay attention when making English websites. Making software pattern coding for windows-1252

43. Site Sitemap always update and submit.

44. Website Navigation Map

1). " Crumb type "Road strength

2. Navigation bar clear.

3. Use site Map

45. The richness of the content of the page keyword and the user experience.

46. Export links less than 100

47.robots.txt reasonable writing (often many stations, a will be included in a lot of a will be included in the drop is very powerful, one of the most important factor is here.)

48. Use of annotations in the chain.

49. Website Login Open Directory

50. Export the quality of the link.

All keyword densities in 51.Body

52. Independent keyword Density

53. Keyword Font size

54. More than two keywords need to consider their proximity

55. Keyword Phrase order

56. Whether the key words are prominent

57. Ensure the link within the site is valid

58. Tree-shaped structure

59 Outbound links do not link to linkfarm

60. Outside the site link text contains keywords

61. Use a fixed link

62. Make sure the link outside the station is valid

63. No more than 100 links outside the station

64. Use "-" to connect keywords in URLs

65. Update Ratio

66. Link Update

67. The website is the collection number.

68. Use the same word root keyword

69. Make semantic and relevant keywords

70. Latent Semantic Correlation index

71.URl length

72. Website Establishment time

73. The time of the page and the time when the website was established

74. Writing on a picture

75. Website Alliance

76.OOP, excessive optimization penalty

77. Is there a link to a bad friendship site

78. Use meta tag to jump

79. Use of poor low-level language

80. Whether the Poison keyword

81. Excessive cross linking

82. Use keywords to fill all the places you can plug

83. The key word distribution is scattered, there is no clear theme

84. Modify the page too quickly

85. Modify links too quickly

86. Dynamic Web page

87. Too much JavaScript

88. Use Flash

89. Use of Frames

90. Turn the robot off in the robots.txt.

91. A pixel link

92 Unseen Words

93. Multi-entry

94. Duplication of Content

95.HTML code does not conform to specification

96.PR4 above page Import link

97. Import Link Increase speed

98. Quality of import links and PageRank

99. Import link Text contains keywords

100. Import Link Time

101. Import link text often changes

102. The popularity of the import link

103. Link number in the Import link page

104. Import link page of our page link ranking

105. Keyword density in the import link page

106. Import Link Page title

107. Import links from the expert website

108. The Import link page has a topic related to this page

109. The Import link page has nothing to do with this page theme

110. Pictures Hot Links

111.javascript Link

112. DMOZ included

113. Whether the subject is consistent with the DMOZ classification

114. Yahoo included

115. LookSmart included

116. Inktomi included

117. By other directory sites included

118. By the large web site reference

119. The website has been established for a long time

120. Website Directory

121. Sitemap

122. Page click Ratio

123. Page Stay time

124. Does the user have a collection

125. Bookmark Add/Delete frequency

126. How users leave, where to go

127. Keywords for searching and linking to pages

128. The site's top-level domain stay time

129. Domain Name Registration time

130. Whether the cooperation website is formal

131. Whether to purchase traffic

132. Temporary LINK analysis

133. Purchase Link

1, the page has no contribution links

2), whether in a short period of time added a large number of links

3, whether in the high PR-independent web page has entered the link

This is useful if it is not found or is considered cheating.

134. Ranking of superior Web pages

135. Existence of reptile deception

136. Domain Name Hijacking

137. Click Cheat

138. Do not shut down or crash when Google Crawler comes

139. The corner page of the big website