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68,769 sitesGlobal8 topics
How major websites globally are built and secured
How major websites globally handle HTTPS, email security, robots.txt, AI crawlers, SEO and more in 2026 — measured on 68,769 sites.
Common mistakesThe issues we find most often on popular websites.12%Sites with ≤ 5 issues11%No compressionSEO basicsTitles, descriptions, H1, canonical, lang and other on-page basics of homepages.56%Title 31–70 characters81%Meta descriptionSecurity headersHSTS, CSP, X-Frame-Options and other protective headers.53%HSTS29%Content-Security-PolicyEmail authenticationSPF, DMARC, MTA-STS and BIMI: how well domains protect their email from spoofing.76%SPF record64%DMARC recordHTTPS & certificatesHTTPS adoption, redirects, TLS versions and certificate authorities.98%HTTPS homepage85%HTTP → HTTPS redirectStructured dataSchema.org types, Open Graph and Twitter cards on homepages.46%JSON-LD structured data50%Open Graphrobots.txtHow websites write robots.txt: sizes, sitemaps, blocked bots.65%robots.txt68%Sitemap in robots.txtPage weightHTML size, scripts, third parties and image formats of homepages.45%Lazy-loaded images23%WebP/AVIF images
Our crawler: 68,769 sites · Global · updated Oct 23, 2026 · Methodology
Markets
Markets compared
The same checks on popular sites in seven markets.
| Metric | Global | United Kingdom | Netherlands | Italy | Spain | Japan | Latin America |
|---|---|---|---|---|---|---|---|
| Sites with ≤ 5 issues | 12% | 11% | 19% | 5.4% | 7.6% | 1.8% | 7.3% |
| Title 31–70 characters | 56% | 61% | 60% | 58% | 62% | 28% | 53% |
| Meta description | 81% | 81% | 81% | 80% | 81% | 85% | 73% |
| Canonical link | 65% | 74% | 69% | 71% | 72% | 50% | 66% |
| Exactly one H1 | 54% | 60% | 58% | 50% | 58% | 58% | 44% |
| HSTS | 53% | 54% | 54% | 40% | 50% | 33% | 44% |
| DMARC record | 64% | 40% | 45% | 68% | 67% | 61% | 67% |
| Mixed content | 1.2% | 1.5% | 0.7% | 2.3% | 1.8% | 2.3% | 2.7% |