Website readiness profile · Snapshot 23 October 2026
ellii.com
ellii.com's public homepage, certificate and DNS checked against 31 practices and compared with 1,516 Education & Online Learning sites.
- Readiness index
- 73/100
- Ahead of
- 79%
- Practices observed
- 21/31
- Popularity band
- Top 50K
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: ellii.com. Thin bar: Education & Online Learning peer median.
Enable
79/100
Peers 75
Harden
69/100
Peers 54
Accelerate
70/100
Peers 57
Recover
100/100
Peers 13
Priority fixes for ellii.com
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 1 days, 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 · Harden
DMARC policy enforces quarantine or reject
Observed: The DMARC policy for ellii.com was p=none, which asks receivers to take no action on failing mail.
What to do: Publish DMARC with p=none and a reporting address first, fix any legitimate senders that fail SPF or DKIM alignment, then move to quarantine and finally reject.
36% of Education & Online Learning peers do this.
Priority 3 · Accelerate
Modern image formats in use
Observed: The homepage had 54 images and none used WebP or AVIF.
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 Next.js: The next/image component serves optimized formats automatically.
32% of Education & Online Learning peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
Priority 4 · 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.
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 ellii.com already does well
Practices fewer than half of Education & Online Learning peers use.
- Nameservers spread across providersNameservers spread across more than one operator.13% of peers
- Content Security Policy presentContent-Security-Policy present.25% of peers
- HTTP/3 advertisedHTTP/3 advertised.25% of peers
What we saw
- Homepage checked
- https://ellii.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Sectigo, 198-day validity, expiring 2026-12-12
- CDN or edge
- Sucuri
- Platform or framework
- Next.js
- DNS operators
- 4 self-run or other nameserver domains
- HSTS
- max-age 365 days, includeSubDomains, preload
- DMARC policy
- p=none
- Homepage HTML
- 110 KB, gzip
- Images on homepage
- 54 (svg 37, png 16)
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
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- 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
- Page language declared
- At most one redirect to the homepage
- Nameservers spread across providers
Own ellii.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: ellii.com. This profile covers configuration only.