Website readiness profile · Snapshot 23 October 2026
nperf.com
nperf.com's public homepage, certificate and DNS checked against 31 practices and compared with 233 Data & Analytics sites.
- Readiness index
- 63/100
- Ahead of
- 45%
- Practices observed
- 16/29
- Popularity band
- Top 50K
Data & Analytics median 63
of measured Data & Analytics sites
2 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: nperf.com. Thin bar: Data & Analytics peer median.
Enable
79/100
Peers 78
Harden
38/100
Peers 56
Accelerate
88/100
Peers 63
Recover
0/100
Peers 8
Priority fixes for nperf.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
HSTS kept for at least a year
Observed: Strict-Transport-Security was sent with a max-age of 183 days, below the one-year benchmark.
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.
On Cloudflare: Enable HSTS under SSL/TLS > Edge Certificates > HTTP Strict Transport Security and raise max-age gradually.
34% of Data & Analytics peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
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.
63% of Data & Analytics peers do this.
Guide: XML Sitemap Guide: Include Only URLs You Stand Behind
Priority 3 · Harden
Framing restricted
Observed: The homepage did not send frame-ancestors or X-Frame-Options, so other sites may frame it.
What to do: Send Content-Security-Policy: frame-ancestors 'self' (or a list of trusted origins). X-Frame-Options: SAMEORIGIN covers older browsers.
On Cloudflare: Add the header with a response header transform rule.
51% of Data & Analytics peers do this.
Priority 4 · 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 Cloudflare: Enable HTTP/3 (with QUIC) under Speed > Optimization > Protocol Optimization.
37% of Data & Analytics peers do this.
What nperf.com already does well
Practices fewer than half of Data & Analytics peers use.
- Modern image formats in useWebP or AVIF images detected.31% of peers
- DMARC policy enforces quarantine or rejectDMARC policy p=quarantine.38% of peers
- Reachable over IPv6IPv6 address published.49% of peers
What we saw
- Homepage checked
- https://www.nperf.com/
- Homepage response
- HTTP 200, after 1 redirect
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Gandi SAS, 198-day validity, expiring 2027-05-06
- CDN or edge
- Cloudflare
- DNS operators
- Cloudflare
- HSTS
- max-age 183 days
- DMARC policy
- p=quarantine
- Homepage HTML
- 185 KB, br
- Images on homepage
- 8 (png 8, webp 6, jpg 4, 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 13
- HSTS kept for at least a year
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- security.txt published
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/3 advertised
- XML sitemap discoverable
- Structured data present
- Nameservers spread across providers
Observed 16
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- DMARC policy enforces quarantine or reject
- HTTP/2 negotiated
- HTML compressed
- Modern image formats in use
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- 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
Not measured 2
- HTTP requests move to HTTPS
- Static files cached for 30 days or more
Own nperf.com?
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: nperf.com. This profile covers configuration only.