Website readiness profile · Snapshot 23 October 2026
thecoolist.com
thecoolist.com's public homepage, certificate and DNS checked against 31 practices and compared with 306 Online Publishing sites.
- Readiness index
- 73/100
- Ahead of
- 79%
- Practices observed
- 21/31
- Popularity band
- Top 50K
Online Publishing median 64
of measured Online Publishing sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: thecoolist.com. Thin bar: Online Publishing peer median.
Enable
87/100
Peers 84
Harden
80/100
Peers 51
Accelerate
53/100
Peers 65
Recover
0/100
Peers 5
Priority fixes for thecoolist.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 117 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 WordPress: WordPress has supported WebP uploads since 5.8 and AVIF since 6.5; image plugins or the host can convert existing images.
38% of Online Publishing 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.
On WordPress: Since WordPress 6.3, scripts can be registered with a defer or async loading strategy.
45% of Online Publishing peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 3 · Accelerate
Offscreen images lazy-loaded
Observed: The homepage had 117 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.
On WordPress: WordPress has added loading="lazy" to images by default since 5.5; check that your theme or a plugin has not removed it.
58% of Online Publishing peers do this.
Priority 4 · Harden
DMARC policy enforces quarantine or reject
Observed: The DMARC policy for thecoolist.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.
20% of Online Publishing peers do this.
What thecoolist.com already does well
Practices fewer than half of Online Publishing peers use.
- CAA records limit who can issue certificatesCAA limits issuance to letsencrypt.org, pki.goog.12% of peers
- Content Security Policy presentContent-Security-Policy present.18% of peers
- Referrer-Policy setReferrer-Policy present.20% of peers
What we saw
- Homepage checked
- https://www.thecoolist.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Let's Encrypt, 89-day validity, expiring 2026-12-03
- Platform or framework
- WordPress
- DNS operators
- Amazon Route 53
- HSTS
- max-age 365 days, includeSubDomains, preload
- DMARC policy
- p=none
- Homepage HTML
- 256 KB, gzip
- Images on homepage
- 117
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
- Certificate lifetime of 100 days or less
- CAA records limit who can issue certificates
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTML compressed
- Static files cached for 30 days or more
- robots.txt published
- XML sitemap discoverable
- Canonical URL declared
- Meta description written
- Mobile viewport configured
- Structured data present
- Page language declared
- At most one redirect to the homepage
Own thecoolist.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: thecoolist.com. This profile covers configuration only.