Scan report for schlemmer.com
5 pages crawled — 3457 words, 144 images and 112 links read straight off the pages and checked for accessibility, performance, SEO, security, forms, links and infrastructure. 43 distinct problems found, counted 115 times across the pages.
Report updated 2026-10-29
Category scores
- Overall
- 85/100
- SEO
- 27/100 · Issues: 32
- Accessibility
- 78/100 · Issues: 15
- Performance
- 86/100 · Issues: 6
- Security
- 66/100 · Issues: 29
- Privacy
- 97/100 · Issues: 5
- HTML validity
- 92/100 · Issues: 6
- Forms
- 100/100 · No issues found
- Links
- 99/100 · Issues: 1
- Console
- 91/100 · Issues: 5
- Infrastructure
- 97/100 · Issues: 5
- Mobile
- 95/100 · Issues: 6
- Images
- 97/100 · Issues: 5
Quick Wins
High-impact, low-effort fixes, ranked by what this scan actually found.
- Add an H1 heading — Both readers and crawlers get a clear statement of what the page is about.
- Send X-Content-Type-Options: nosniff — Browsers stop guessing content types and executing files as scripts.
- Send an X-Frame-Options header — The site cannot be framed for click-jacking.
- Send a Referrer-Policy header — Internal URLs stop leaking to third-party sites.
- Send the charset in the Content-Type header — The browser knows the encoding before it reads the first byte, instead of guessing at it.
- Write meta descriptions for the pages without one — Google stops inventing snippets and shows the copy you wrote.
What the site checks found
- Low — SEO — No robots.txt — crawlers get no guidance and no sitemap pointer.
- Medium — SEO — The sitemap is not valid XML, so crawlers cannot read it.
- Medium — SEO — Both www.schlemmer.com and the canonical host serve the site with HTTP 200 — the whole site exists at two addresses.
- Medium — SEO — A URL that does not exist answers with HTTP 200 — search engines index missing pages as real ones.
- Medium — SEO — 6 hreflang links are not confirmed by a link back from the other language: /en → /de (de), /en → /fr (fr), /en → /it (it). Google ignores one-way pairs.
- Low — SEO — 5 alternates are in a different language from the hreflang code they are listed under: /en → /de (de), /en → /fr (fr), /en → /it (it).
- Low — Security — No /.well-known/security.txt — anyone who finds a vulnerability has to guess where to report it.
- Low — Security — No CAA record — any certificate authority may issue a certificate for this domain.
- Low — Security — The zone is not signed with DNSSEC, so a forged DNS answer cannot be detected.
- Medium — Performance — 18 of 18 static files checked are cached for less than a week, or not at all — returning visitors download them again.
- Low — Performance — The HTML is compressed with gzip but not with Brotli, which every current browser accepts and which is typically 15–20% smaller.
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