Content Factors in SEO Analysis

Study Notes

Content Factors

Text relevance has a correlation of 0.47 with position on SERP.
Content quality score has a correlation of 0.17.
Keyword coverage has a correlation of 0.08.
Image alt tags count has a correlation of 0.04.
Image count has a correlation of 0.03.
Schema.org count has a correlation of 0.03.
Percentage of pages with schema.org markup has a correlation of 0.03.
Page word count has a correlation of 0.02.
Meta description word count has a correlation of 0.02.
Video count on page has a correlation of 0.01.
Percentage of pages with author schema markup has a correlation of 0.01.
Sentence count has a correlation of 0.01.
Lists count (
- Paragraphs count has a correlation of 0.
- Tables count has a correlation of -0.02.
- Percentage of pages with tables has a correlation of -0.02.
- Readability score has a correlation of -0.02.
- Content age (in days) has a correlation of -0.02.
- Title word count has a correlation of -0.05.
Backlink Factors
- Domain authority score has a correlation of 0.21 with position on SERP.
- Page authority score has a correlation of 0.19.
- Number of referring IPs (domain) has a correlation of 0.18.
- Number of referring domains (domain) has a correlation of 0.18.
- Number of referring IPs (URL) has a correlation of 0.18.
- Number of referring domains (URL) has a correlation of 0.18.
- Number of backlinks (domain) has a correlation of 0.17.
- Number of backlinks (URL) has a correlation of 0.17.
- Domain Authority Score and Page Authority Score show the strongest correlation.
URL & Domain Factors
- URL's organic traffic has a correlation of 0.33.
- Domain's organic traffic has a correlation of 0.28.
- URL's organic positions in top-20 has a correlation of 0.22.
- Domain occurrences of Star Ratings has a correlation of 0.22.
- Domain's organic positions in top-20 images has a correlation of 0.2.
- Domain occurrences in images has a correlation of 0.2.
- URL occurrences of Star Ratings has a correlation of 0.19.
- Domain occurrences in featured snippets has a correlation of 0.15.
- URL occurrences in featured snippets has a correlation of 0.14.
- Domain's age has a correlation of 0.11.
- URL occurrences in images has a correlation of 0.07.
- Is subdomain has a correlation of 0.06.
- If nTLD has a correlation of 0.06.
- URL parameters count (https) has a correlation of 0.04.
- URL length subfolders has a correlation of 0.01.
- URL length characters has a correlation of a negative -0.01.
- Check the degree of correlation for occurrences of star ratings (domain and page level).
On-SERP Factors
- URL-keyword similarity (BERT) has a correlation of 0.07.
- Title-keyword similarity (BERT) has a correlation of 0.07.
- Number of words from a keyword in title has a correlation of 0.06.
- Percentage of pages with keyword in title has a correlation of 0.03.
- Percentage of pages with keyword in description has a correlation of 0.01.
- Number of words in description has a correlation of -0.02.
- Number of words in title has a correlation of -0.05.
- Factors indicate not to fixate over exact match keyword inclusion.
User Experience Factors
- FID has a correlation of 0.08.
- Total blocking time has a correlation of 0.08.
- Time to interactive has a correlation of 0.06.
- CLS has a correlation of -0.01.
- FCP has a correlation of -0.01.
- LCP has a correlation of -0.02.
- FCP [lab] has a correlation of -0.03.
- LCP [lab] has a correlation of -0.05.
- CLS [lab] has a correlation of -0.05.
- Server response time has a correlation of -0.06.
- Minimal degrees of correlation for the factors in this group.
User Signals
- Direct traffic share has a correlation of 0.09.
- Time on site has a correlation of 0.08.
- Branded search traffic share has a correlation of -0.02.
- Bounce rate has a correlation of -0.06.
- Direct traffic share shows a small correlation, while branded traffic share shows none.