Website readiness profile · Snapshot 23 October 2026
ns.nl
ns.nl's public homepage, certificate and DNS checked against 31 practices and compared with 203 Trains & Public Transport sites.
- Readiness index
- 84/100
- Ahead of
- 97%
- Practices observed
- 24/31
- Popularity band
- Top 50K
Trains & Public Transport median 60
of measured Trains & Public Transport sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: ns.nl. Thin bar: Trains & Public Transport peer median.
Enable
87/100
Peers 73
Harden
89/100
Peers 57
Accelerate
78/100
Peers 53
Recover
0/100
Peers 15
Priority fixes for ns.nl
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 4 external scripts without async or defer.
Why it matters: A plain <script src> in the head stops the browser from showing anything until that file has downloaded and run.
What to do: Add defer to scripts that need the DOM, async to independent ones such as analytics, or move them to the end of the body.
43% of Trains & Public Transport peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 2 · 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.
28% of Trains & Public Transport peers do this.
Priority 3 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from DigiCert Inc 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.
43% of Trains & Public Transport peers do this.
Priority 4 · Enable
Structured data present
Observed: The homepage had no JSON-LD structured data.
What to do: Add JSON-LD for your organization and main content types, then test it with Google's Rich Results Test.
33% of Trains & Public Transport peers do this.
What ns.nl already does well
Practices fewer than half of Trains & Public Transport peers use.
- security.txt publishedsecurity.txt with a contact found.9.5% of peers
- DNSSEC signedDNSSEC delegation (DS record) present.13% of peers
- Modern image formats in useWebP or AVIF images detected.28% of peers
What we saw
- Homepage checked
- https://www.ns.nl/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- DigiCert, 198-day validity, expiring 2027-03-14
- CDN or edge
- Amazon CloudFront
- DNS operators
- Akamai Edge DNS
- HSTS
- max-age 365 days
- DMARC policy
- p=reject
- Homepage HTML
- 366 KB, gzip
- Images on homepage
- 16 (webp 73, svg 2)
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 7
Observed 24
- 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
- robots.txt published
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Own ns.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: ns.nl. This profile covers configuration only.