Website readiness profile · Snapshot 23 October 2026
speedtest.net
speedtest.net's public homepage, certificate and DNS checked against 31 practices and compared with 492 Web Tools sites.
- Readiness index
- 82/100
- Ahead of
- 91%
- Practices observed
- 21/28
- Popularity band
- Top 1K
Web Tools median 67
of measured Web Tools sites
3 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: speedtest.net. Thin bar: Web Tools peer median.
Enable
85/100
Peers 84
Harden
89/100
Peers 55
Accelerate
67/100
Peers 69
Recover
0/100
Peers 6
Priority fixes for speedtest.net
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Modern image formats in use
Observed: The homepage had 5 images and none used WebP or AVIF.
Why it matters: WebP and AVIF are typically much smaller than JPEG or PNG at similar quality, and images are often the heaviest part of a page.
What to do: Serve WebP or AVIF with a JPEG or PNG fallback, either through an image CDN or by generating both formats at build time.
On Cloudflare: Cloudflare Polish can convert images to WebP.
37% of Web Tools peers do this. Limit: Based on the homepage HTML delivered to an automated client; scripts that run later were not executed.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
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 Cloudflare: Enable HTTP/3 (with QUIC) under Speed > Optimization > Protocol Optimization.
56% of Web Tools peers do this.
Priority 3 · 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.
51% of Web Tools peers do this.
Priority 4 · Harden
CAA records limit who can issue certificates
Observed: No CAA record was found for speedtest.net, 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.
On Cloudflare: Cloudflare documents which CAs its managed certificates need; include them in your CAA records.
14% of Web Tools peers do this.
What speedtest.net already does well
Practices fewer than half of Web Tools peers use.
- security.txt publishedsecurity.txt with a contact found.4.8% of peers
- Content Security Policy presentContent-Security-Policy present.15% of peers
- DMARC policy enforces quarantine or rejectDMARC policy p=quarantine.23% of peers
What we saw
- Homepage checked
- https://www.speedtest.net/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2026-12-10
- CDN or edge
- Cloudflare
- DNS operators
- Amazon Route 53
- HSTS
- max-age 365 days, includeSubDomains, preload
- DMARC policy
- p=quarantine
- Homepage HTML
- 202 KB, gzip
- Images on homepage
- 5 (svg 5)
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 21
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- 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
- No render-blocking scripts in <head>
- 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
Not measured 3
- Static files cached for 30 days or more
- Offscreen images lazy-loaded
- robots.txt published
Own speedtest.net?
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Live status for this site: Status Is Down: speedtest.net. This profile covers configuration only.