Website readiness profile · Snapshot 23 October 2026
skillbuilder.aws
skillbuilder.aws's public homepage, certificate and DNS checked against 31 practices and compared with 1,516 Education & Online Learning sites.
- Readiness index
- 71/100
- Ahead of
- 76%
- Practices observed
- 18/29
- Popularity band
- Top 50K
Education & Online Learning median 61
of measured Education & Online Learning sites
2 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: skillbuilder.aws. Thin bar: Education & Online Learning peer median.
Enable
77/100
Peers 75
Harden
78/100
Peers 54
Accelerate
50/100
Peers 57
Recover
0/100
Peers 13
Priority fixes for skillbuilder.aws
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Static files cached for 30 days or more
Observed: A same-site stylesheet or script was cacheable for no max-age, short of the 30-day benchmark.
Why it matters: Returning visitors and later page views reuse cached files instead of downloading them again.
What to do: Give versioned (fingerprinted) CSS, JavaScript, fonts and images Cache-Control: public, max-age=31536000, immutable, and change the file name whenever the content changes.
45% of Education & Online Learning peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Accelerate
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 2 external scripts without async or defer.
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.
42% of Education & Online Learning peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 3 · Enable
Canonical URL declared
Observed: The homepage did not declare a canonical URL.
What to do: Add a self-referencing canonical link to every indexable page, using the final https:// URL.
62% of Education & Online Learning peers do this.
Priority 4 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from Amazon had a 197-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.
60% of Education & Online Learning peers do this.
What skillbuilder.aws already does well
Practices fewer than half of Education & Online Learning peers use.
- security.txt publishedsecurity.txt with a contact found.5% of peers
- Referrer-Policy setReferrer-Policy present.27% of peers
- HSTS kept for at least a yearHSTS with a 548-day max-age covering subdomains.34% of peers
What we saw
- Homepage checked
- https://skillbuilder.aws/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Amazon, 197-day validity, expiring 2027-04-29
- CDN or edge
- Amazon CloudFront
- DNS operators
- Amazon Route 53
- HSTS
- max-age 548 days, includeSubDomains
- DMARC policy
- p=reject
- Homepage HTML
- 8 KB, gzip
- Images on homepage
- 0
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 11
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- DNSSEC signed
- Content Security Policy present
- HTTP/3 advertised
- Static files cached for 30 days or more
- No render-blocking scripts in <head>
- Reachable over IPv6
- Canonical URL declared
- Structured data present
- Nameservers spread across providers
Observed 18
- HTTP requests move to HTTPS
- HSTS kept for at least a year
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- robots.txt published
- XML sitemap discoverable
- Meta description written
- Mobile viewport configured
- Social preview image set
- Page language declared
- At most one redirect to the homepage
Not measured 2
- Modern image formats in use
- Offscreen images lazy-loaded
Own skillbuilder.aws?
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: skillbuilder.aws. This profile covers configuration only.