Website readiness profile · Snapshot 23 October 2026
thuisarts.nl
thuisarts.nl's public homepage, certificate and DNS checked against 31 practices and compared with 613 Fitness & Health sites.
- Readiness index
- 91/100
- Ahead of
- >99%
- Practices observed
- 27/31
- Popularity band
- Top 50K
Fitness & Health median 67
of measured Fitness & Health sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: thuisarts.nl. Thin bar: Fitness & Health peer median.
Enable
95/100
Peers 82
Harden
89/100
Peers 59
Accelerate
90/100
Peers 63
Recover
100/100
Peers 10
Priority fixes for thuisarts.nl
Ordered by impact and by how common each practice is among peers.
Priority 1 · 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.
Why it matters: Under CA/Browser Forum Ballot SC-081v3, the maximum lifetime of public TLS certificates fell to 200 days on 15 March 2026 and falls to 100 days on 15 March 2027 and 47 days on 15 March 2029. Sites that renew by hand will need to renew far more often.
What to do: Move to automated issuance and renewal now, while you still have time to test it.
59% of Fitness & Health peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.
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.
29% of Fitness & Health peers do this.
Priority 3 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for thuisarts.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.
11% of Fitness & Health peers do this.
Priority 4 · Enable
Reachable over IPv6
Observed: No IPv6 (AAAA) address was published for www.thuisarts.nl.
What to do: Enable IPv6 at your CDN or host and publish the AAAA record it provides.
36% of Fitness & Health peers do this.
What thuisarts.nl already does well
Practices fewer than half of Fitness & Health peers use.
- security.txt publishedsecurity.txt with a contact found.7.3% of peers
- DNSSEC signedDNSSEC delegation (DS record) present.9% of peers
- Nameservers spread across providersNameservers spread across more than one operator.9.9% of peers
What we saw
- Homepage checked
- https://www.thuisarts.nl/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Sectigo, 198-day validity, expiring 2027-02-10
- Platform or framework
- Drupal
- DNS operators
- 4 self-run or other nameserver domains
- HSTS
- max-age 365 days, includeSubDomains
- DMARC policy
- p=quarantine
- Homepage HTML
- 77 KB, gzip
- Images on homepage
- 13 (jpg 6, svg 5, webp 4)
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 4
Observed 27
- 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
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
- Nameservers spread across providers
Own thuisarts.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: thuisarts.nl. This profile covers configuration only.