Website readiness profile · Snapshot 23 October 2026

kurzy.cz

kurzy.cz's public homepage, certificate and DNS checked against 31 practices and compared with 233 Data & Analytics sites.

Readiness index: 59/100
Ahead of: 33%
Practices observed: 15/30
Popularity band: Top 50K

Measured 2026-10-23 12:02:55 UTC from one location. How we measure

Readiness by lane

Green: kurzy.cz. Thin bar: Data & Analytics peer median.

Enable

95/100

Peers 78

Harden

40/100

Peers 56

Accelerate

56/100

Peers 63

Recover

0/100

Peers 8

Priority fixes for kurzy.cz

Ordered by impact and by how common each practice is among peers.

Priority 1 · Harden
TLS 1.3 negotiated
Observed: The TLS connection negotiated TLSv1.2.
Why it matters: TLS 1.3 removes legacy cipher suites and completes the handshake in fewer round trips, so it is both safer and faster for new connections.
What to do: Enable TLS 1.3 on your CDN or server. Keep TLS 1.2 available for older clients unless you have checked your audience.
91% of Data & Analytics peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.
Guide: HTTPS and TLS Guide for Website Owners
Priority 2 · Harden
DMARC policy enforces quarantine or reject
Observed: The DMARC policy for kurzy.cz 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.
38% of Data & Analytics peers do this.
Guide: A Practical Website Health Check for Owners
Priority 3 · 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.
54% of Data & Analytics peers do this.
Guide: Control Third-Party Scripts Before They Control Your Page
Priority 4 · Accelerate
Modern image formats in use
Observed: The homepage had 65 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.
31% of Data & Analytics peers do this.
Guide: AVIF, WebP, JPEG, and PNG: Choose the Right Image Format

What kurzy.cz already does well

Practices fewer than half of Data & Analytics peers use.

HSTS kept for at least a yearHSTS with a 365-day max-age.34% of peers
Structured data presentJSON-LD structured data found.43% of peers

What we saw

Homepage checked: https://www.kurzy.cz/
Homepage response: HTTP 200
TLS: TLSv1.2, HTTP/2
Certificate: Alpiro s.r.o., 198-day validity, expiring 2027-04-01
DNS operators: 1 self-run or other nameserver domain
HSTS: max-age 365 days
DMARC policy: p=none
Homepage HTML: 150 KB, gzip
Images on homepage: 65 (jpg 38, png 15, svg 12)

Limits: homepage only, one location, one moment. Header checks reflect the homepage response; other pages may differ.

All 31 checks

Select a gap for the method and fix. How each check works

Not observed 15

Observed 15

HTTP requests move to HTTPS
HSTS kept for at least a year
Certificate has more than 14 days left
HTTP/2 negotiated
HTML compressed
Offscreen images lazy-loaded
robots.txt published
XML sitemap discoverable
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

Not measured 1

Static files cached for 30 days or more

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Live status for this site: Status Is Down: kurzy.cz. This profile covers configuration only.

Compare with other Data & Analytics sites

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