ListoWeb | Diseño Web en 48h Valencia

What Dr Urls found on listowebapp.es

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.

• 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
  Cache-Control header missing

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

• 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
  No structured data (schema.org) found

  Structured data enables rich results (star ratings, FAQ dropdowns, recipe cards, product prices, breadcrumbs, etc.) that dramatically increase click-through rates — some rich resu…

• medium
  Open Graph og:image tag missing

  Social media posts with images receive significantly more engagement than text-only posts.

• medium
  Thin content (too few words)

  Google's Helpful Content system explicitly targets thin, low-value pages.

• low
  Apple touch icon missing

  The apple-touch-icon provides a branded icon when users bookmark your site on iOS devices.

• low
  CSS files are not minified

  Unminified CSS files are larger than necessary, increasing download time and delaying rendering.

• low
  Excessive inline CSS

  Inline CSS cannot be cached separately by the browser, so it is re-downloaded with every page load.

And 9 more. 5 security findings are not listed on this public page; the site's owner sees them in a full audit after claiming it.