101

What Dr Urls found on 101.at

From the audit of their public home page on 22/10/2026, worst first. Each links to what it means and how it is fixed.

• critical
  Viewport meta tag missing

  Google uses mobile-first indexing, meaning the mobile version of your page is what gets indexed and ranked.

• high
  Missing H1 heading

  The H1 tag tells both users and search engines what the page is about.

• high
  Missing landmark elements

  WCAG 1.3.1 requires that page structure is programmatically determinable.

• 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
  Above-fold images not prioritized

  The Largest Contentful Paint (LCP) element is often a hero image.

• medium
  Cache-Control header missing

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

• medium
  Images missing width and height attributes

  Missing image dimensions are the leading cause of Cumulative Layout Shift (CLS), a Core Web Vital and ranking factor.

• medium
  Missing canonical tag

  Canonical tags are the strongest signal you can send to search engines about which URL should be indexed when multiple URLs serve similar content.

• medium
  Missing lang attribute on <html> element

  Without the lang attribute, screen readers may use the wrong pronunciation rules, making the content incomprehensible for visually impaired users.

• medium
  Missing meta description

  While meta descriptions are not a direct ranking factor, they significantly influence click-through rates.

• medium
  No :focus-visible styles detected

  WCAG 2.4.7 requires a visible focus indicator for all interactive elements.

And 13 more. 7 security findings are not listed on this public page; the site's owner sees them in a full audit after claiming it.