I. Keyword factors
1. Keywords are in the title tags (title).
2. Keywords appear at the beginning of title tags.
3. The keyword is in the root domain name (eg keyword.com).
4. The keyword is anywhere in the H1 tag.
5. Keywords included in internal internal linking.
6. Keywords included in the backlink.
7. Keywords appear at the beginning of the H1 . tag
8. Keywords appear in the first 50-150 words.
9. Keywords in Subdomain.
10. Keyword in URL Profile.
11. Keywords in URL Folder.
12. Keywords in other title tags (h2 - h6).
13. Keywords in Alt tags (images).
14. Keywords are repeated in HTML documents.
15. Keyword in Image Name (eg keyword.jpg)
16. Keywords are in bold tag.
17. Keyword density by formula (# Keyword Total)
18. Keywords included in the MARC List of pages.
19. Keywords included in the page's query parameters.
20. Keywords in italicized tags.
21. Keywords included in the Meta Description Tag.
22. The keyword is in the file extension on the page.
23. Keywords in the HTML comment tag.
24. Keywords in Keywords Meta Tag.
II. Non-keyword element
1. Existence of content, malicious content.
2. The website must always be refreshed.
3. Use internal linking.
4. Content change history
5. Use outbound links on the page.
6. Query parameters in URL vs. Static URL Format.
7. Ratio of code/text in HTML.
8. The existence of the Meta Description tag.
9. HTML Validation meets W3C . standards
10. Use of Flash Elements (or Content Plug-ins)
11. Use ads on the page
12. Use Google AdSense (specifically) on the site
III. Google ranking based on links
1. Keywords Focus on Anchor Text from External Links
2. Link popularity (quantity + quality)
3. Diversity of link sources.
4. Trusted site
5. Exchange links.
6. Difference from external linking sources
7. Keywords Focus on Anchor Text from Internal Links
8. The location of the information in the website system.
9. Dissemination of links in internal linking.
10. Quantity and Quality of Nofollow Links
11. Percentage of Followed and Nofollowed Links on Page
IV. Basic link-based ranking factors
1. Trust is based on links from trusted domains
2. Popular Links of Domain
3. Link variety based on number/multiple linking root domains
4. Links from reputable sources, on the same topic.
5. Development time/lack of links to Domain
6. Link from a domain with restricted access (edu, gov, mil)
7. Dofollow vs nofollowed to Domain Percentage
V. Basic Link-Based Ranking Factors
1. Domain site structure (structure and hierarchy)
2. Use Links to Reputable Sites / Pages
3. Long-term domain name registration
4. Domain name registration has history (how long has it been registered)
5. Operating time of Server/Hosting
6. Hosting information (host on server / c-block)
7. Domain Name Registration or Change of Ownership
8. Include news from the Google News site's Domain
9. Using XML Sitemap(s)
10. Domain ownership (registrants and their history)
11. Domain Name Registration with Google Local
12. Domains "recommended" (quoting the domain's text)
13. Includes news from the domain of Google Blog Search
14. Citations/references of domain names in the Yahoo!
15. Citations/references of domain names in DMOZ.org
16. Citations/references of domain names in Wikipedia
17. Use Feeds on Domain
18. Citation/reference of domain names in Lii.org
19. Domain Name Registration with Google Webmaster Tools
20. Enable Google's "enhanced image search" function
21. Using Security Certificates on Domain
22. Validity of information listed from domain name registration
23. Citations/references of domain names in Google Knol
24. Using Google's Search Engine on Domains
25. Use Google AdSense on Domain
26. Using Google AdWords for Domain Ads
27. Alexa Rank Domain
28. Compete.com Ranked by Domain
29. Use Google's Hosted Web Apps on Domain
VI. Google Ranking Based on Social Media
1. Introduce your domain or page to Delicious
2. Recommend your domain or page to StumbleUpon
3. Recommend the domain or page to the Twitter page
4. Recommend your domain or page to your LinkedIn page
5. Recommend domain or page to Facebook page
6. Introduce your domain name or page to MySpace
VII. Google ranking factors using traffic data
1. Click-Through Rate History from Exact Site/URL Search
2. Historical Click-Through Rate from Search to Pages on this Domain
3. Search Query for Associated Domains or Brands
4. Using Refinement Query Post-Click on a search result
5. Average "Time on Page"
6. Data from Google SearchWiki votes, ratings, comments
7. References / Links to Domains in Gmail Emails
VIII. Geo-Factor Targeting:
1. Country Code TLD of the root domain
2. The language of the content used on the website
3. Links from other domains target to Country/Region
4. Location Geolocation server IP address of the domain name
5. Google engineer targeting.
6. Geo-Target as guided by Google Webmaster Tools
7. Site Registration with Google Local Country/Region
8. Address in On-Page Text
9. Address of the domain registrar
10. Geolocation of website visitors
11. Geo-Tagging Pages Through Meta Data
Factors that negatively affect website rankings on Google
IX. Factors that adversely affect the value of external links
1. Domains are penalized Index for linking to Web Spam
2. Links to Spam Web Sites
3. Links are acquired by buying and selling, not natural links
4. The domain name contains a large number of Web Spam links
5. The domain name does not get highly trusted links
X. Ranking Factor (not recommended)
1. Cover up with malicious / Intent . manipulation
2. Buy links from broker links
3. Links from Web Sites Spam / Pages
4. User Agent Mark
5. Server downtime often & inaccessible
6. Use hidden/background text
7. Links from domains to Spam/Pages . Web Sites
8. Too Many Repetitions of the Same Page Anchor Text
9. Masking IP Address
10. Hide text outside visible page area
11. Contains too many dynamic parameters in URL
12. Too many links from websites in the same IP address range
13. Bait-and-Switch Campaign (301'ing a millionth of a page...)
14. Keyword Stuffing in On-Page Texts
15. Hide Text with CSS (display: none) Styling
16. Keyword Stuffing in Title Tag
17. Keyword stuffing in URLs
18. Links obtained from the Campaign Widget / Badge operation
19. JavaScript / Rich Detection
20. Coverage detected by Cookie
21. Buy Links From Low Quality Directory
22. Too many links from the same registrar sites
23. Web Site Links Spam / Pages
24. Link to Domain Web Sites Spam / Pages
25. Links From Viral Marketing Campaigns
26. Cloaking Cloaking of content from users.
27. Abuse of In-Text Anchor Internal Link Optimization
28. Links from emotional anchor texts.
29. Buy Links from Old Domains & Redirects
30. URL is too long
31. Use Multiple Internal Linking Anchor Texts in Footers
32. Keyword stuffing in Meta Description Tag
33. Link Acquisition from Buying Domains and Adding Links
34. Excessive use of Nofollow in Internal Links.
35. Link building from forums (signatures, profiles, etc.)
36. Title Tag is too long
37. Keyword stuffing in Keywords Meta Tag