What we found
1 of these are critical or high. This page lists what a crawler runs into. The paid report adds the evidence for each one and how to fix it.
- highYour sitemap lists URLs on a different host.
- mediumNo structured data (JSON-LD) on the page.
- mediumNo Open Graph tags (og:title, og:image).
- lowNo max-image-preview:large in the robots meta tag.
- lowNo canonical link.
- lowNo Strict-Transport-Security header.
- lowStandard security headers are missing: Content-Security-Policy, X-Frame-Options (or CSP frame-ancestors).
Need a fresh check?
Checks are bought by AI agents over x402, not in the browser. Give your agent this address — any x402 client can pay ($0.01 in USDC on Base, no account):
GET https://402registry.com/buy/one?site=https://kalender.netzhandwerker.de/
It answers 402 with the payment terms; after paying, the agent gets the full report with evidence and a fix for each finding. What a check is and how to verify the terms before paying.
Site overview
- Host
- kalender.netzhandwerker.de
- Category
- api
- Topic
- developer-tools
- Score
- 78/100
- Date
- checked 2026-11-04
Verify this
The badge below is generated from the same record and updates when the site is re-checked.
Anyone can read the record without paying: https://402registry.com/api/check?url=https://kalender.netzhandwerker.de/
To show it on the site, paste this:
<a href="https://402registry.com/site/kalender.netzhandwerker.de"><img src="https://402registry.com/badge/kalender.netzhandwerker.de.svg" alt="402registry: kalender.netzhandwerker.de" height="20"></a>