1 - Keyword in a Title Tag 2 - Title Tag Start with Keyword 3 - Keyword in Description 4 - Keyword appears in H1 Tag 5 - TF-IDF 6 - Content-Length 7 - Table Of Content 8 - Keyword Density 9 - Latent Semantic Indexing Keywords in Content (LSI) 10 - LSI Keywords in Title and Description Tag
11 - Page Loading Speed via HTML 12 - Page Loading Speed via Chrome 13 - Use of AMP 14 - Entity Match 15 - Google Hummingbird 16 - Duplicate Content 17 - Rel=Canonical 18 - Image Optimization 19 - Content Recency 20 - The magnitude of Content Updates
21 - Historical Page Updates 22 - Keyword Prominence 23 - Keyword in H2, H3 Tags 24 - Outbound Link Quality 25 - Outbound Link Theme 26 - Grammar and Spelling 27 - Syndicated Content 28 - Mobile-Friendly Update 29 - Mobile Usability 30 - “Hidden” Content on Mobile
31 - Helpful “Supplementary Content” 32 - Content Hidden Behind Tabs 33 - A number of Outbound Links 34 - Multimedia (Page Level Factors) 35 - Number of Internal Links Pointing to Page 36 - Quality of Internal Links Pointing to Page 37 - Broken Links 38 - Reading Level 39 - Affiliate Links 40 - HTML errors/W3C validation
41 - Domain Authority 42 - Page’s PageRank 43 - URL Length 44 - URL Path 45 - Page Category 46 - Keyword in URL 47 - URL String 48 - References and Sources 49 - Bullets and Numbered Lists 50 - Priority of Page in Sitemap