Website readiness profile · Snapshot 23 October 2026
gtt.to.it
gtt.to.it's public homepage, certificate and DNS checked against 31 practices and compared with 203 Trains & Public Transport sites.
- Readiness index
- 38/100
- Ahead of
- 6.4%
- Practices observed
- 10/28
- Popularity band
- Top 50K
Trains & Public Transport median 60
of measured Trains & Public Transport sites
3 of 31 could not be measured
Chrome UX Report top-sites list
Readiness by lane
Green: gtt.to.it. Thin bar: Trains & Public Transport peer median.
Enable
36/100
Peers 73
Harden
31/100
Peers 57
Accelerate
54/100
Peers 53
Recover
100/100
Peers 15
Priority fixes for gtt.to.it
Ordered by impact and by how common each practice is among peers.
Priority 1 · Harden
Certificate has more than 14 days left
Observed: The certificate from Sectigo Limited was due to expire on 2026-11-03 (11 days after the check).
Why it matters: An expired certificate makes browsers show a full-page warning. Renewing well ahead of expiry leaves time to fix a failed renewal.
What to do: Automate renewal with ACME (for example Let's Encrypt or your CDN's managed certificates) and add a renewal review to your release calendar so any certificate inside 21 days of expiry gets attention.
98% of Trains & Public Transport peers do this. Limit: Certificate and protocol were observed from one vantage point; CDNs can present different certificates by region.
Priority 2 · Enable
Mobile viewport configured
Observed: The homepage had no viewport meta tag, so phones may render it zoomed out.
What to do: Add <meta name="viewport" content="width=device-width, initial-scale=1"> and check the layout on small screens.
95% of Trains & Public Transport peers do this.
Priority 3 · Accelerate
HTTP/2 negotiated
Observed: The TLS handshake selected http/1.1 instead of HTTP/2.
What to do: Enable HTTP/2 on your CDN or server. Most CDNs do this by default.
77% of Trains & Public Transport peers do this.
Priority 4 · Enable
robots.txt published
Observed: No robots.txt file was returned at the site root.
What to do: Publish /robots.txt with any crawl rules you need and a Sitemap: line pointing to your XML sitemap.
81% of Trains & Public Transport peers do this.
Guide: Robots.txt Guide: Control Crawling Without Hiding Mistakes
What gtt.to.it already does well
Practices fewer than half of Trains & Public Transport peers use.
- CAA records limit who can issue certificatesCAA limits issuance to digicert.com, letsencrypt.org, sectigo.com.8.9% of peers
- Nameservers spread across providersNameservers spread across more than one operator.15% of peers
- No render-blocking scripts in <head>Head scripts load without blocking.43% of peers
What we saw
- Homepage checked
- https://www.gtt.to.it/
- Homepage response
- HTTP 200
- TLS
- TLSv1.3, http/1.1
- Certificate
- Sectigo, 365-day validity, expiring 2026-11-03
- DNS operators
- 2 self-run or other nameserver domains
- HSTS
- max-age 0 days
- DMARC policy
- p=none
- Homepage HTML
- 2 KB, gzip
- Images on homepage
- 0
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 18
- HSTS kept for at least a year
- Certificate has more than 14 days left
- Certificate lifetime of 100 days or less
- DNSSEC signed
- security.txt published
- DMARC policy enforces quarantine or reject
- X-Content-Type-Options: nosniff
- Framing restricted
- Content Security Policy present
- Referrer-Policy set
- HTTP/2 negotiated
- HTTP/3 advertised
- robots.txt published
- XML sitemap discoverable
- Reachable over IPv6
- Mobile viewport configured
- Structured data present
- Social preview image set
Observed 10
- HTTP requests move to HTTPS
- TLS 1.3 negotiated
- CAA records limit who can issue certificates
- HTML compressed
- No render-blocking scripts in <head>
- Canonical URL declared
- Meta description written
- Page language declared
- At most one redirect to the homepage
- Nameservers spread across providers
Not measured 3
- Static files cached for 30 days or more
- Modern image formats in use
- Offscreen images lazy-loaded
Own gtt.to.it?
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Live status for this site: Status Is Down: gtt.to.it. This profile covers configuration only.