Stefan Metze – Webdesign & SEO Berlin

What Dr Urls found on stefan-metze.com

From the audit of their public home page on 25/10/2026, worst first. Each links to what it means and how it is fixed.

• high
  Slow server response time (TTFB > 3s)

  Page speed is a confirmed Google ranking factor, and TTFB is the foundational component.

• high
  Time to First Byte (TTFB) is slow

  TTFB directly impacts all subsequent loading metrics.

• medium
  Cache-Control header missing

  Proper caching prevents browsers from re-downloading unchanged resources, dramatically improving repeat visit performance.

• low
  H1 heading is too long

  A concise H1 provides a clear, focused signal about the page's primary topic.

• low
  Images missing responsive srcset

  Without srcset, a 1200px wide image is downloaded on a 375px wide mobile screen, wasting bandwidth and slowing load times.

• low
  Meta description is too long

  Truncated descriptions cut off your message to potential visitors.

• low
  Missing preconnect hints for critical origins

  Each new origin connection requires DNS resolution, TCP handshake, and TLS negotiation, adding 100-300ms of latency.

• low
  Open Graph og:url tag missing

  The og:url tag acts as a canonical for social shares, consolidating likes, shares, and comments to a single URL.

• low
  Viewport missing initial-scale

  Without initial-scale=1, some mobile browsers may not correctly establish the initial zoom level, potentially causing layout issues.

• low
  WebSite schema markup missing

  Google reads WebSite structured data on the home page when choosing the site name it shows above your results.

• low
  X-Content-Type-Options header missing

  Without this header, browsers may interpret files as a different content type than intended, which can lead to XSS attacks when a malicious file is interpreted as executable scrip…

8 security findings are not listed on this public page; the site's owner sees them in a full audit after claiming it.