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Search Engine (SEO) Ranking Factors 2007 - Quick Reference

Ranking Factors Simplified and Sorted Across Categories

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Aaron Wall, Andy Hagans, Ani Kortikar, Barry Schwartz, Barry Welford, Ben Pfeiffer, Bill Slawski, Caveman, Chris Boggs, Christine Churchill, Danny Sullivan, DazzlinDonna, Debra Mastaler, EGOL, Elisabeth Osmeloski, Eric Enge, Eric Ward, Guillaume, Jeremy Schoemaker, Jill Whalen, Jonah Stein, Joost de Valk, Laura Lippay, Lucas Ng (aka shor), Marcus Tandler, Michael Gray, Mike McDonald, Natasha Robinson, Neil Patel, Rae Hoffman, Rand Fishkin, Russ Jones, Ruud Hein, Scottie Claiborne, Thomas Bindl, Todd Malicoat, Wil Reynolds, Will Critchlow

# Type Factor Importance Consensus
1 Keyword Keyword Use in Title Tag High Yes
2 Site Global Link Popularity of Site High Yes
3 In-Link Anchor Text of Inbound Link High Yes
4 Page Link Popularity within the Site's Internal Link Structure High Yes
5 Site Age of Site High Somewhat
6 Site Topical Relevance of Inbound Links to Site High Somewhat
7 Site Link Popularity of Site in Topical Community High Somewhat
8 Negative Server is Often Inaccessible to Bots High No
9 Keyword Keyword Use in Body Text High Somewhat
10 In-Link Global Link Popularity of Linking Site High No
11 Negative Content Very Similar or Duplicate of Existing Content in the Index High Somewhat
12 Page Quality/Relevance of Links to External Sites/Pages High Somewhat
13 Site Rate of New Inbound Links to Site High Somewhat
14 In-Link Topical Relationship of Linking Page High Somewhat
15 In-Link Link Popularity of Site in Topical Community High Somewhat
16 Negative External Links to Low Quality/Spam Sites High Somewhat
17 Keyword Relationship of Body Text Content to Keywords (Topic Analysis) High Somewhat
18 Keyword Keyword Use in H1 Tag High Somewhat
19 Page Age of Document High Somewhat
20 Negative Duplicate Title/Meta Tags on Many Pages High No
21 Negative Participation in Link Schemes or Actively Selling Links High No
22 Negative Overuse of Targeted Keywords (Stuffing/Spamming) High Somewhat
23 Page Amount of Indexable Text Content High Somewhat
24 Site Relevance of Site's Primary Subject Matter to Query High No
25 In-Link Topical Relationship of Linking Site High Somewhat
26 In-Link Age of Link High Somewhat
27 In-Link Text Surrounding the Link High Yes
28 Keyword Keyword Use in Domain Name Medium Somewhat
29 Page Quality of the Document Content (as measured algorithmically) Medium No
30 In-Link Internal Link Popularity of Linking Page within Host Site/Domain Medium Somewhat
31 Keyword Keyword Use in Page URL Medium Somewhat
32 Keyword Keyword Use in H2, H3, H(x) Tags Medium Somewhat
33 Page Organization/Hierarchy of Document Flow (i.e. broad > narrow) Medium Somewhat
34 Negative Very Slow Server Response Times Medium Somewhat
35 Site Historical Performance of Site as Measured by Time Spent on Page, Clickthroughs from SERPs, Direct Visits, Bookmarks, etc. Medium Somewhat
36 Site Manual Authority/Weight Given to Site by Google Medium No
37 Keyword Keyword Use in Alt Tags and Image Titles Medium Yes
38 Site TLD Extension of Site (edu, gov, us, ca, com, etc) Medium Somewhat
39 Site Rate of New Pages Added to Site Medium Somewhat
40 In-Link Domain Extension of Linking Site (edu, gov, com, ca,, etc) Medium Somewhat
41 In-Link PageRank (as measured by the GG Toolbar) of Linking Page Medium Somewhat
42 In-Link Temporal Link Attributes (when in time the link was created/updated) Medium Somewhat
43 Keyword Keyword Use in Bold/Strong Tags Medium Somewhat
44 Page Frequency of Updates to Page Medium Somewhat
45 Negative Inbound Links from Spam Sites Medium Somewhat
46 Keyword Keyword Use in Meta Description Tag Medium Somewhat
47 Negative Low Levels of Visitors to the Site (Measured via Toolbar, Clicks in SERPs, etc.) Medium Somewhat
48 Site Number of Queries for Site/Domain over Time Low Somewhat
49 Page Number of Trailing Slashes (/) in URL Low Somewhat
50 Page Accuracy of Spelling & Grammar Low Somewhat
51 Page HTML Validation of Document (to W3C Standards) Low Yes
52 Site Verification of Site with Google Webmaster Central Low Yes
53 Keyword Keyword Use in Meta Keywords Tag Low Yes

For a more detailed view of the ranking factors see the original ranking factors 2007 document at

Translation tables where you can see my values versus the values from the original report.

Type to Category
Keyword = Keyword Use Factors
Page = Page Attributes
Site = Site/Domain Attributes
In-Link = Inbound Link Attribute
Negative = Negative Crawling/Ranking Attributes

Importance to Rating
High = High Importance (3-4) and Exceptional Importance (4+)
Medium = Moderate Importance (2-3)
Low = Slight Importance (1-2)

Yes = High Consensus
Somewhat = Average Agreement
No = Highly Disputed

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