Website readiness profile · Snapshot 23 October 2026
alison.com
alison.com's public homepage, certificate and DNS checked against 31 practices and compared with 1,516 Education & Online Learning sites.
- Readiness index
- 75/100
- Ahead of
- 84%
- Practices observed
- 21/31
- Popularity band
- Top 10K
Education & Online Learning median 61
of measured Education & Online Learning sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: alison.com. Thin bar: Education & Online Learning peer median.
Enable
100/100
Peers 75
Harden
75/100
Peers 54
Accelerate
53/100
Peers 57
Recover
0/100
Peers 13
Priority fixes for alison.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Accelerate
Modern image formats in use
Observed: The homepage had 73 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.
32% of Education & Online Learning 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
No render-blocking scripts in <head>
Observed: The homepage <head> loaded 1 external script 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 · Accelerate
Offscreen images lazy-loaded
Observed: The homepage had 73 images and none used loading="lazy".
What to do: Add loading="lazy" to images below the fold. Do not lazy-load the main hero image, because that delays the largest visible element.
52% of Education & Online Learning peers do this.
Priority 4 · Harden
Certificate lifetime of 100 days or less
Observed: The certificate from GoDaddy.com, Inc. had a 397-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 alison.com already does well
Practices fewer than half of Education & Online Learning peers use.
- Content Security Policy presentContent-Security-Policy present.25% of peers
- HSTS kept for at least a yearHSTS with a 365-day max-age.34% of peers
- DMARC policy enforces quarantine or rejectDMARC policy p=reject.36% of peers
What we saw
- Homepage checked
- https://alison.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- GoDaddy, 397-day validity, expiring 2027-04-05
- CDN or edge
- Cloudflare
- DNS operators
- Cloudflare
- HSTS
- max-age 365 days, preload
- DMARC policy
- p=reject
- Homepage HTML
- 163 KB, br
- Images on homepage
- 73 (svg 61, png 11, gif 1)
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 10
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
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- HTTP/2 negotiated
- HTML compressed
- Static files cached for 30 days or more
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- 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
Own alison.com?
Re-run the checks after a change, keep a private action plan in a free workspace, or report a mistake.
Live status for this site: Status Is Down: alison.com. This profile covers configuration only.