Scan report for stco.ru
5 pages crawled — 1581 words, 33 images and 183 links read straight off the pages and checked for accessibility, performance, SEO, security, forms, links and infrastructure. 45 distinct problems found, counted 126 times across the pages.
Report updated 2026-10-27
Category scores
- Overall
- 85/100
- SEO
- 53/100 · Issues: 33
- Accessibility
- 58/100 · Issues: 29
- Performance
- 94/100 · Issues: 6
- Security
- 42/100 · Issues: 37
- Privacy
- 91/100 · Issues: 1
- HTML validity
- 98/100 · Issues: 1
- Forms
- 100/100 · No issues found
- Links
- 99/100 · Issues: 1
- Console
- 98/100 · Issues: 1
- Infrastructure
- 100/100 · No issues found
- Mobile
- 83/100 · Issues: 16
- Images
- 99/100 · Issues: 1
Quick Wins
High-impact, low-effort fixes, ranked by what this scan actually found.
- Declare the page language on the <html> element — Screen readers pick the right pronunciation and translation tools work.
- Add the responsive viewport meta tag — The layout adapts to phones instead of being zoomed out.
- Add an H1 heading — Both readers and crawlers get a clear statement of what the page is about.
- Send a Strict-Transport-Security header — Browsers refuse to fall back to plain HTTP for this domain.
- Give every button an accessible name — Every control announces what it does instead of being read out as a button.
- Send X-Content-Type-Options: nosniff — Browsers stop guessing content types and executing files as scripts.
What the site checks found
- Low — SEO — No robots.txt — crawlers get no guidance and no sitemap pointer.
- Low — SEO — Pages the crawl found that the sitemap does not list: 2 of 4 — crawlers have to reach them through links alone.
- Medium — SEO — Both www.stco.ru and the canonical host serve the site with HTTP 200 — the whole site exists at two addresses.
- Medium — SEO — Sitemap URLs answering with an error: 1 of 5 checked — the sitemap is sending crawlers at pages that are gone.
- Low — Security — No /.well-known/security.txt — anyone who finds a vulnerability has to guess where to report it.
- Low — Security — Response headers publish exact software versions: server: nginx/1.30.6.
- Medium — Security — No DMARC record at _dmarc — nothing tells receiving servers what to do with mail that fails the SPF check.
- 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.
- Low — Performance — The HTML is compressed with gzip but not with Brotli, which every current browser accepts and which is typically 15–20% smaller.
- Medium — Privacy — None of the scanned pages links a privacy policy (missing: privacy, terms, imprint).
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