funda.nl

Readiness by lane

Green: funda.nl. Thin bar: Real Estate & Property Listings peer median.

Priority fixes for funda.nl

Ordered by impact and by how common each practice is among peers.

1. Priority 1 · Harden

   HSTS kept for at least a year

   Observed: The homepage response did not include a Strict-Transport-Security header.

   Why it matters: HSTS tells browsers to use HTTPS for your host on every later visit, which removes the window where a first HTTP request can be intercepted.

   What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.

   43% of Real Estate & Property Listings peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.

   Guide: HTTPS and TLS Guide for Website Owners

2. Priority 2 · Enable

   XML sitemap discoverable

   Observed: No sitemap was listed in robots.txt or found at /sitemap.xml.

   What to do: Generate an XML sitemap of canonical URLs, reference it in robots.txt and submit it in Google Search Console.

   74% of Real Estate & Property Listings peers do this.

   Guide: XML Sitemap Guide: Include Only URLs You Stand Behind

3. Priority 3 · Enable

   Meta description written

   Observed: The homepage had no meta description.

   What to do: Write a short, specific description of the page for people, not a list of keywords.

   91% of Real Estate & Property Listings peers do this.

   Guide: Meta Titles and Descriptions That Match Search Intent

4. Priority 4 · Enable

   Canonical URL declared

   Observed: The homepage did not declare a canonical URL.

   What to do: Add a self-referencing canonical link to every indexable page, using the final https:// URL.

   77% of Real Estate & Property Listings peers do this.

   Guide: Canonical Tags: A Decision Guide for Duplicate URLs

What funda.nl already does well

Practices fewer than half of Real Estate & Property Listings peers use.

• No render-blocking scripts in <head>Head scripts load without blocking.49% of peers

What we saw

Homepage checked

https://www.funda.nl/

Homepage response

HTTP 200

TLS

TLSv1.3, HTTP/2

Certificate

DigiCert, 366-day validity, expiring 2027-01-13

CDN or edge

Akamai

DNS operators

Amazon Route 53

DMARC policy

p=reject

Homepage HTML

14 KB, gzip

Images on homepage

1 (svg 1)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

Stack and providers

Seen in the homepage response, certificate and DNS. Provider pages compare how their customers configure the same checks.

All 31 checks

Select a gap for the method and fix. How each check works

Compare with other Real Estate & Property Listings sites

• clasificadosonline.com43
• kenbiya.com51
• realitica.com47
• sumaity.com50
• trovacasa.it49

Real Estate & Property Listings readiness benchmark