Website readiness profile · Snapshot 23 October 2026
nos.nl
nos.nl's public homepage, certificate and DNS checked against 31 practices and compared with 3,856 News & Media sites.
- Readiness index
- 89/100
- Ahead of
- >99%
- Practices observed
- 26/31
- Popularity band
- Top 5K
News & Media median 68
of measured News & Media sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: nos.nl. Thin bar: News & Media peer median.
Enable
92/100
Peers 89
Harden
89/100
Peers 56
Accelerate
90/100
Peers 68
Recover
0/100
Peers 11
Priority fixes for nos.nl
Ordered by impact and by how common each practice is among peers.
Priority 1 · Enable
Structured data present
Observed: The homepage had no JSON-LD structured data.
Why it matters: Structured data helps search engines understand your organization, products or articles, and is needed for some rich results.
What to do: Add JSON-LD for your organization and main content types, then test it with Google's Rich Results Test.
76% of News & Media peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Priority 2 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from Sectigo Limited had a 198-day validity period, longer than the 100-day maximum that applies from March 2027.
What to do: Move to automated issuance and renewal now, while you still have time to test it.
66% of News & Media peers do this.
Priority 3 · Accelerate
HTTP/3 advertised
Observed: The homepage did not advertise HTTP/3 through an Alt-Svc header.
What to do: Turn on HTTP/3 at your CDN. Browsers fall back to HTTP/2 automatically, so the risk is low.
On Amazon CloudFront: Select HTTP/3 in the distribution's supported HTTP versions.
36% of News & Media peers do this.
Priority 4 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for nos.nl, so any public certificate authority may issue for it.
What to do: Publish CAA records naming every CA you actually use, including the CAs your CDN uses for managed certificates. Add an iodef contact if you want reports.
13% of News & Media peers do this.
What nos.nl already does well
Practices fewer than half of News & Media peers use.
- DNSSEC signedDNSSEC delegation (DS record) present.6.1% of peers
- security.txt publishedsecurity.txt with a contact found.6.2% of peers
- Referrer-Policy setReferrer-Policy present.22% of peers
What we saw
- Homepage checked
- https://nos.nl/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Sectigo, 198-day validity, expiring 2026-12-11
- CDN or edge
- Amazon CloudFront
- Platform or framework
- Next.js
- DNS operators
- Amazon Route 53
- HSTS
- max-age 365 days
- DMARC policy
- p=quarantine
- Homepage HTML
- 815 KB, gzip
- Images on homepage
- 77 (webp 2000, svg 3)
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
Not observed 5
Observed 26
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- DNSSEC signed
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own nos.nl?
Re-run the checks after a change, or verify the site in a free workspace to save reports with history, compare against similar sites and competitors, and track a private action plan. What owners get.
Live status for this site: Status Is Down: nos.nl. This profile covers configuration only.