Domain Factor:
1. Domain Age
2. Domain Registration length
3. Keyword Appears in top level domain
4. Keyword as first word in domain
5. Keyword in subdomain name
6. Domain history
Page-Level Factors:
1. Keyword in Title tag
2. Title tag starts with keywords
3. Keyword in Description tag
4. Keyword appears in H1 Tag
5. Content Length
6. Keyword Density
7. Page loading speed via HTML
8. LSI keywords in title and description tags
9. Duplicate Content
10. Image Optimization
11. Magntude of content updates
12. Keywords in H2, H3 Tags
13. Outbound link quality
14. Keyword word order
15. Grammar and Spelling
16. Syndicated Content
17. Mutimedia
18. Quality of Internal Links pointing to Page
19. URL length & path
Site-Level Factors:
1. Contact us Page
2. Domain Trust
3. Site Architecture
4. Site Updates
5. Number of Pages
6. Site Uptime
7. Presence of Sitemap
8. Server Location
9. Terms of Service and Privacy pages
10. Site Usability
11. Youtube
12. User reviews / Site Reputation
Backlink Factors:
1. Linking Domain Age
2. Alt Tag (For Image Links)
3. Links from .EDU or .GOV Domains
4. PR of Linking Page
5. Links from Competitors
6. Authority of Linking Domain
7. Social Share of referring page
8. Nofollow links
9. Diversity of link types
10. Contextual links
11. Link Location in Content
12. Link Location on page
13. Linking Domain Relevancy
14. Page Level Relevancy
15. Keyword in Title
16. Positive Link Velocity
17. Linked to as Wikipedia Source
18. Backlink Age
19. Reciprocal links
20. DMOZ Listed
21. Sitewide Links
Special Algorithm Rules:
1. Query deserves freshness
2. Query deserves diversity
3. User browsing history
4. Safe search
5. Google+ Circles
6. DMCA complaints
7. GEO Targeting
8. Google News Box
9. Big brand preference
10. Shopping results
11. Single site results for brands
12. Image results
Social Signals:
1. Number of Tweets
2. Number of Facebook Likes
3. Authority of Twitter Users Account
4. Facebook Shares
5. Pinterest Pins
6. Authority of Facebook user Accounts
7. Votes on Social sharing sites
8. Verified Google+ authorship
Hope this can help some of you.
Let me know any questions.
1. Domain Age
2. Domain Registration length
3. Keyword Appears in top level domain
4. Keyword as first word in domain
5. Keyword in subdomain name
6. Domain history
Page-Level Factors:
1. Keyword in Title tag
2. Title tag starts with keywords
3. Keyword in Description tag
4. Keyword appears in H1 Tag
5. Content Length
6. Keyword Density
7. Page loading speed via HTML
8. LSI keywords in title and description tags
9. Duplicate Content
10. Image Optimization
11. Magntude of content updates
12. Keywords in H2, H3 Tags
13. Outbound link quality
14. Keyword word order
15. Grammar and Spelling
16. Syndicated Content
17. Mutimedia
18. Quality of Internal Links pointing to Page
19. URL length & path
Site-Level Factors:
1. Contact us Page
2. Domain Trust
3. Site Architecture
4. Site Updates
5. Number of Pages
6. Site Uptime
7. Presence of Sitemap
8. Server Location
9. Terms of Service and Privacy pages
10. Site Usability
11. Youtube
12. User reviews / Site Reputation
Backlink Factors:
1. Linking Domain Age
2. Alt Tag (For Image Links)
3. Links from .EDU or .GOV Domains
4. PR of Linking Page
5. Links from Competitors
6. Authority of Linking Domain
7. Social Share of referring page
8. Nofollow links
9. Diversity of link types
10. Contextual links
11. Link Location in Content
12. Link Location on page
13. Linking Domain Relevancy
14. Page Level Relevancy
15. Keyword in Title
16. Positive Link Velocity
17. Linked to as Wikipedia Source
18. Backlink Age
19. Reciprocal links
20. DMOZ Listed
21. Sitewide Links
Special Algorithm Rules:
1. Query deserves freshness
2. Query deserves diversity
3. User browsing history
4. Safe search
5. Google+ Circles
6. DMCA complaints
7. GEO Targeting
8. Google News Box
9. Big brand preference
10. Shopping results
11. Single site results for brands
12. Image results
Social Signals:
1. Number of Tweets
2. Number of Facebook Likes
3. Authority of Twitter Users Account
4. Facebook Shares
5. Pinterest Pins
6. Authority of Facebook user Accounts
7. Votes on Social sharing sites
8. Verified Google+ authorship
Hope this can help some of you.