Google Lets Web Designers See Parts of Their Algorithm
Google filed for a patent on March 31st, 2005 – Patent App. No. #20050071741. While the patent has been discussed in a variety of forums lately, the major factors are as follows:
Inbound Links
- Number
- Quality
- Surrounding Text
- Anchor Text
Historical Factors of Links
- Speed Obtained
- Lifespan
- New Links
- Measured Growth
- Dates are Recorded
- Rate of Attrition or Addition
Domain Names
- Length of Ownership
- Length of Registration
- Registration Data – Valid Information
- Changes in Registration
Search Results – Click Throughs
- Volume Monitored
- Changes in Seasons
- Changes in Trends
- Changes in Content (Fresh)
- No Changes in Content (Stale)
- Click Through Rate on Links
- Return Click Throughs
Traffic
- Page Rankings Logged
- Visits are Monitored
- Bookmarks are Monitored
- Time User Spends on Site
Content
- Page Update Frequency
- Page Update Amount
- Keyword Density
Spam Penalities
- Mass Change in Content
- Short Domain Registrations
- False Domain Registrations
- Global Changes in Content Detected & Penalized
- Single Document Websites
- Documents that Change Frequently are Untrustworthy
- New Domains
- Short Lived Links
- Stale Links
- Link Churn
.