Website readiness profile · Snapshot 23 October 2026
kolaygelsin.com
kolaygelsin.com's public homepage, certificate and DNS checked against 31 practices and compared with 185 Postage & Courier Services sites.
- Readiness index
- 75/100
- Ahead of
- 86%
- Practices observed
- 22/31
- Popularity band
- Top 50K
Postage & Courier Services median 60
of measured Postage & Courier Services sites
0 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: kolaygelsin.com. Thin bar: Postage & Courier Services peer median.
Enable
90/100
Peers 75
Harden
58/100
Peers 56
Accelerate
85/100
Peers 53
Recover
100/100
Peers 12
Priority fixes for kolaygelsin.com
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
HSTS kept for at least a year
Observed: The homepage response did not include a Strict-Transport-Security header.
Why it matters: HSTS tells browsers to use HTTPS for your host on every later visit, which removes the window where a first HTTP request can be intercepted.
What to do: Send Strict-Transport-Security on HTTPS responses. Start with a short max-age (for example 300 seconds), confirm every subdomain works over HTTPS, then raise it in steps to 31536000. Add includeSubDomains only when all subdomains are HTTPS. HSTS preload is optional and hard to undo; hstspreload.org itself does not recommend it by default.
On Cloudflare: Enable HSTS under SSL/TLS > Edge Certificates > HTTP Strict Transport Security and raise max-age gradually.
39% of Postage & Courier Services peers do this. Limit: Read from the homepage response only; other pages or regions may send different headers.
Priority 2 · Accelerate
Modern image formats in use
Observed: The homepage had 19 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 Cloudflare: Cloudflare Polish can convert images to WebP.
31% of Postage & Courier Services peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format
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.
61% of Postage & Courier Services peers do this.
Priority 4 · Harden
Framing restricted
Observed: The homepage did not send frame-ancestors or X-Frame-Options, so other sites may frame it.
What to do: Send Content-Security-Policy: frame-ancestors 'self' (or a list of trusted origins). X-Frame-Options: SAMEORIGIN covers older browsers.
On Cloudflare: Add the header with a response header transform rule.
50% of Postage & Courier Services peers do this.
What kolaygelsin.com already does well
Practices fewer than half of Postage & Courier Services peers use.
- Nameservers spread across providersNameservers spread across more than one operator.12% of peers
- HTTP/3 advertisedHTTP/3 advertised.22% of peers
- Reachable over IPv6IPv6 address published.31% of peers
What we saw
- Homepage checked
- https://kolaygelsin.com/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, HTTP/2
- Certificate
- Google Trust Services, 90-day validity, expiring 2026-12-11
- CDN or edge
- Cloudflare
- Platform or framework
- Next.js
- DNS operators
- 3 self-run or other nameserver domains
- DMARC policy
- p=quarantine
- Homepage HTML
- 19 KB, gzip
- Images on homepage
- 19 (svg 16, png 3)
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 9
Observed 22
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- DMARC policy enforces quarantine or reject
- Content Security Policy present
- HTTP/2 negotiated
- HTTP/3 advertised
- HTML compressed
- Static files cached for 30 days or more
- Offscreen images lazy-loaded
- No render-blocking scripts in <head>
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Meta description written
- Mobile viewport configured
- Structured data present
- Social preview image set
- Page language declared
- At most one redirect to the homepage
- Nameservers spread across providers
Own kolaygelsin.com?
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Live status for this site: Status Is Down: kolaygelsin.com. This profile covers configuration only.