Introduction
Domain Factors
- Domain Age
- Keyword Appears in Top Level Domain
- Keyword As First Word in Domain
- Domain Registration Length
- Keyword in Subdomain Name
- Domain History
- Exact Match Domain (EMD)
- Public vs. Private Whois
- Penalized Whois Owner
- Country TLD extension
Page-Level Factors
- Keyword in Title Tag
- Title Tag Starts with Keyword
- Keyword in Description Tag
- Keyword Appears in H1 Tag
- Keyword is Most Frequently Used Phrase in Document
- Content Length
- Keyword Density
- Latent Semantic Indexing Keywords in Content (LSI)
- LSI Keywords in Title and Description Tags
- Page Loading Speed
- Duplicate Content
- Rel=Canonical
- Image Optimization
- Recency of Content Updates
- Magnitude of Content Updates
- Page Updates History
- Keyword Prominence
- Keyword in H2, H3 Tags
- Keyword Word Order
- Outbound Link Quality
- Outbound Link Theme
- Grammar and Spelling
- Original Content
- Helpful Supplementary Content
- Number of Outbound Links
- Multimedia
- Number of Internal Links Pointing to Page
- Quality of Internal Links Pointing to Page
- Broken Links
- Reading Level
- Affiliate Links
- HTML Markup Validation
- PageRank
- URL Length
- URL Path
- Human Editors
- Keyword in URL
- References and Sources
- Bullets and Numbered Lists
- Priority of Page in Sitemap
- Quantity and Quality of Other Keywords Page Ranks For
- Page Age
- User Friendly Layout
- Parked Domains
- Useful Content
- AMP
- Table of Contents
Site-Level Factors
- Content Provides Value and Unique Insights
- Contact Us Page
- Site Architecture
- Number of Pages
- Presence of XML Sitemap
- Site Uptime
- Server Location
- SSL Certificate
- Terms of Service and Privacy Policy
- Duplicate Meta Information On-Site
- Breadcrumb Navigation
- Mobile Optimized
- YouTube
- Site Usability
- User reviews/Site reputation
Backlinks Factors
- Backlinks from Aged Domains
- Number of Linking Root Domains
- Number of Links from Separate C-Class IPs
- Number of Linking Pages
- Alt Attribute for Images
- Links from .edu or .gov Domains
- PR of Linking Page
- Authority of Linking Domain
- Links From Competitors
- Social Shares of Referring Page
- Links from Bad Neighborhoods
- Guest Posts
- Backlinks to the Homepage
- Nofollow Links
- Diversity of Backlinks
- Sponsored Links
- Excessive 301 Redirects to Page
- Backlink Anchor Text
- Internal Link Anchor Text
- Country TLD of Referring Domain
- Link Location In Content
- Link Location on Page
- Linking Domain Relevancy
- Page Level Relevancy
- Link Velocity
- Links from “Hub” Pages
- Wikipedia Backlinks
- Backlink Age
- Links from Real Sites vs. Splogs
- Reciprocal Links
- User Generated Content Links
- Schema.org
- Being DMOZ Listed
- Being Yahoo! Directory Listed
- Forum Profile Links
- Word Count of Linking Content
- Quality of Linking Content
- Site-wide Links
User Interaction Factors
- Organic Click Through Rate for a Keyword
- Organic CTR for All Keywords
- Bounce Rate
- Direct Traffic
- Repeat Traffic
- Chrome Bookmarks
- Google Toolbar Data
- Number of Comments
- Dwell Time
Special Algorithm Rules
- Query Deserves Freshness
- Query Deserves Diversity
- User Browsing History
- User Search History
- Geo Targeting
- Safe Search
- Google+ Circles
- DMCA Complaints
- Domain Diversity
- Transactional Searches
- Local Searches
- Google News
- Big Brand Preference
- Shopping Results
- Image Results
- Single Site Results for Brands
Social Signals
- Number of Tweets
- Authority of Twitter Users Accounts
- Number of Facebook Likes
- Facebook Shares
- Authority of Facebook User Accounts
- Pinterest Pins
- Votes on Social Sharing Sites
- Number of Google+’s
- Authority of Google+ User Accounts
Brand Signals
- Brand Name Anchor Text
- Branded Searches
- Official Linkedin Company Page
- Brand Mentions on News Sites
- Co-Citations
- Number of RSS Subscribers
- Brick and Mortar Location With Google+ Local Listing
WebSpam Factors
- Panda Penalty
- Links to Bad Neighborhoods
- Popups or Distracting Ads
- Page / Site Over-Optimization
- Ads Above the Fold
- Hiding Affiliate Links
- Affiliate Sites
- Autogenerated Content
- IP Address Flagged as Spam
- Meta Tag Spamming
- Unnatural Influx of Links
- Penguin Penalty
- Link Profile with High % of Low Quality Links
- Linking Domain Relevancy
- Links from the Same Class C IP
- “Poison” Anchor Text
- Manual Penalty
- Google Sandbox
- Google Dance
Glossary
- Domain Name
- Domain Name Whois
- Pagerank
- Special Character