Online Marketing And SEO Facts, and where I found them

Last Update: 10/1/2017

  1. A sitemap can be no larger than 50mb and can hold no more than 50,000 URL’s. – Sitemaps.org
  2. Linkspammers are injecting code and links into PDF’s – Search Engine Land
  3. 60%+ of direct traffic is from organic search – Groupon
  4. 77% of baskets are abandoned by shoppers. – Search Engine Land
  5. The ideal search box is 27 characters wide. – Smashing Magazine
  6. Pure black text on a pure white background is hard for a dyslexic user to see. – UX Movement
  7. 10-15% of the US population has dyslexia – Dyslexia Research Institute
  8. An OG image should be 1200×630, or proportionately larger. FB Developers Site
  9. Google counts the first 16 words in alt text, regardless of character count. Hobo Internet Marketing
  10. Twitter Cards – Titles should be 70 characters max, while descriptions max out at 200 characters. Twitter Developer Center
  11. The maximum size for a disavow file is 2MB. SEO Round Table
  12. Here’s a nifty formula for swapping out the URLs on a list: =RIGHT(A3,LEN(A3)-FIND(“/”,A3,FIND(“//”,A3)+2)) from this thread on StackOverflow
  13. Here’s a nifty formula for counting words in an excel cell: =IF(LEN(TRIM(A2))=0,0,LEN(TRIM(A2))-LEN(SUBSTITUTE(A2,” “,””))+1) from this article.
  14. Code for a Wayback Machine link in your 404 page:
    <div id=“wb404”/>
    <script src=https://archive.org/web/wb404.js> </script>
  15. Wayback – see how many domains were captured by a website: https://web.archive.org/web/*/thedomanyouwantotrack.com/*
  16. Wayback – get a complete list of URLs crawled, where 4037 is a sample number found from #13 – http://web.archive.org/cdx/search/cdx?url=thedomanyouwantotrack.com/*&output=json&limit=4037
  17. The location of a Sitemap file determines the set of URLs that can be included in that Sitemap. A Sitemap file located at http://example.com/catalog/sitemap.xml can include any URLs starting with http://example.com/catalog/ but can not include URLs starting with http://example.com/images/ – from sitemaps.org.

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