Data Studies

    SEO Data Studies, Page 2

    Studies on how Google ranks, displays and indexes pages: title and meta description rewrites, ranking churn, search features, schema markup, backlinks and on-page basics. The data comes from Google US search results on desktop and mobile, the websites behind US Google Business Profiles across dozens of industries, homepage code and Google Lighthouse results from the public HTTP Archive crawl, site popularity from Google's Chrome UX Report, and backlink records for small business websites. Each study lists its sample and method, so you can judge how far the findings apply to your own site.

    48 studies · page 2 of 2 · Need help acting on them? See our technical SEO services.

    41.3%
    SEO

    41.3% of Websites Don't List Their XML Sitemap in Robots.txt

    41.3% of websites don't point search engines to their XML sitemap in robots.txt, a one-line fix, and the most visited sites skip it more often than small ones: 45.9% of the 10k most visited websites leave it out, against 40.6% of sites outside the top million.

    Sep 24, 2026
    68%
    SEO

    68% of Business Keywords on Google Score as Easy to Rank For

    68% of US business keywords on Google score under 30 out of 100 for keyword difficulty, the range SEO tools label easy, and the median keyword scores 18. Mortgage keywords are the hardest, with a median of 37, more than seven times pest control's 5.

    Sep 24, 2026
    82.2%
    SEO

    82% of Law Firm Websites Have No Attorney or Legal Service Schema

    82.2% of law firm websites don't use Attorney or LegalService schema, the code that tells Google a site belongs to a law firm, and 39.8% miss at least one of four basic SEO elements on their homepage, above the 37.9% average across 15 industries.

    Sep 24, 2026
    76.4%
    SEO

    76% of Dental Practice Websites Have No Dentist Schema Markup

    76.4% of dental practice websites don't use Dentist schema, the code that tells Google a site belongs to a dental practice, even though dental websites handle the other SEO basics better than most: 30.2% miss a basic element on their homepage, against a 37.9% average across 15 industries.

    Sep 24, 2026
    85.3%
    SEO

    85% of HVAC Company Websites Have No HVAC Business Schema Markup

    85.3% of HVAC company websites don't use HVACBusiness schema, the code that tells Google a site belongs to a heating and cooling company, even though HVAC websites handle the other SEO basics better than any of 15 industries: 26% miss a basic element on their homepage, against a 37.9% average.

    Sep 24, 2026
    93.4%
    SEO

    93% of Plumbing Company Websites Have No Plumber Schema Markup

    93.4% of plumbing company websites don't use Plumber schema, the code that tells Google a site belongs to a plumber, even though plumbing websites handle the other SEO basics better than most: 30.5% miss a basic element on their homepage, against a 37.9% average across 15 industries.

    Sep 24, 2026
    88.3%
    SEO

    88% of Roofing Company Websites Have No Roofing Contractor Schema

    88.3% of roofing company websites don't use RoofingContractor schema, the code that tells Google a site belongs to a roofer, even though roofing websites handle the other SEO basics better than most: 28.1% miss a basic element on their homepage, against a 37.9% average across 15 industries.

    Sep 24, 2026
    86.3%
    SEO

    86% of Real Estate Websites Have No Real Estate Agent Schema

    86.3% of real estate websites don't use RealEstateAgent or RealEstateListing schema, the code that tells Google a site belongs to an agent or lists homes, and 46.1% have no schema markup at all, the second highest rate of 15 industries.

    Sep 24, 2026
    84.7%
    SEO

    85% of Restaurant Websites Have No Restaurant Schema Markup

    84.7% of restaurant websites don't use restaurant schema, the code that tells Google a site belongs to a restaurant, and 46.2% miss a basic SEO element on their homepage, the third highest rate of 15 industries.

    Sep 24, 2026
    72.1%
    SEO

    72% of Insurance Agency Websites Have No Insurance Agency Schema

    72.1% of insurance agency websites don't use InsuranceAgency schema, the code that tells Google a site belongs to an insurance agency, while 31.5% miss a basic SEO element on their homepage, the fifth lowest rate of 15 industries.

    Sep 24, 2026
    94.6%
    SEO

    95% of SaaS Websites Have No Software Schema Markup

    94.6% of SaaS websites don't use SoftwareApplication or WebApplication schema, the code that tells search engines a site sells software, and 44% have no schema markup of any kind, against a 32.9% average across 15 industries.

    Sep 24, 2026
    85.9%
    SEO

    86% of Hotel Websites Have No Hotel or Lodging Schema

    85.9% of hotel websites don't use Hotel or LodgingBusiness schema, the code that tells search engines a site belongs to a place to stay, and 38.1% miss at least one of four basic SEO elements on their homepage, against a 37.9% average across 15 industries.

    Sep 24, 2026
    26.9%
    SEO

    26.9% of Small Business Websites Link to Their Own Redirects vs 0.9% With Redirect Chains

    26.9% of small business websites link from their own pages to an old address that redirects, about 30 times the 0.9% that have a chain of two redirects in a row, the redirect chains SEO tools warn about. The everyday housekeeping faults are the common ones: 18.3% of small business websites reuse page titles and 12.8% hide missing pages from Google.

    Sep 24, 2026

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