zssk.sk
Národný dopravca
Last scanned Aug 4, 2026, 7:00 PM · 11 views
Overall score
Great
Summary
Cestujte vlakom na Slovensku aj do zahraničia so ZSSK. This website uses WordPress. SEO is good (80/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (90/100). Top issue: No H1 heading found.
Cestujte vlakom na Slovensku aj do zahraničia so ZSSK. Kúpte si lístok a užite si pohodlnú cestu do vášho cieľa.
Top issues to fix
8 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
3 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+2 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
1.39 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
-2 overall since Jul 27, 2026
- Overall
- 83
- SEO
- 80
- Security
- 75
- Performance
- 90
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- info@slovakrail.sk
- Phone
- 18188+421244858188
Meta tags
- Title
- Národný dopravca
- Description
- Cestujte vlakom na Slovensku aj do zahraničia so ZSSK. Kúpte si lístok a užite si pohodlnú cestu do vášho cieľa.
- Canonical
- https://www.zssk.sk/
- Language
- sk
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Let's Encrypt
- Subject
- www.zssk.sk
- Valid from
- Jun 19, 2026
- Valid to
- Sep 17, 2026
- Days until expiry
- 44
- SAN domains
- autovlak.sk, cestovanievlakom.sk, idemevlakom.sk, idemevlakomnavylet.sk, konto.zssk.sk, listkynavlak.sk, predaj.zssk.sk, railsk.sk, railway.sk, slovakrail.sk, slovenskedrahy.sk, slovenskevlaky.sk, slusnevlakom.sk, vlakomnahokej.sk, vlakomnavylet.sk, vlakyslovensko.sk, wifizssk.sk, www.autovlak.sk, www.cestovanievlakom.sk, www.idemevlakomnavylet.sk, www.listkynavlak.sk, www.railsk.sk, www.railway.sk, www.slovakrail.sk, www.slovenskedrahy.sk, www.slovenskevlaky.sk, www.slusnevlakom.sk, www.vlakomnahokej.sk, www.vlakomnavylet.sk, www.vlakyslovensko.sk, www.wifizssk.sk, www.zeleznica.sk, www.zelezniciari.sk, www.zssk.sk, www.zsskthu.sk, zeleznica.sk, zelezniciari.sk, zssk.sk, zsskthu.sk
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 3 cookie(s) observed
Content & assets
Headings
H1 0 · H2 9 · H3 31
Links
88 internal · 13 external · 1 broken
Images
13 total · 0 missing alt
Scripts / Styles
77 scripts · 18 stylesheets
JS / CSS size
34.3 KB · 43.4 KB
Page size
211 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://zssk.sk
- Final URL
- https://www.zssk.sk/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.38 s
- HTML size
- 211 KB
- Redirect chain
- https://zssk.sk → https://www.zssk.sk/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does zssk.sk use?
- zssk.sk is built with React, PHP, WordPress, jQuery.
- Is zssk.sk secure (HTTPS)?
- Yes. zssk.sk uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 17, 2026.
- Who hosts zssk.sk?
- Hosting provider information for zssk.sk is not available yet.
- What is zssk.sk's SEO score?
- zssk.sk scored 80/100 for SEO in the latest analysis (great).
- What is zssk.sk's overall website score?
- zssk.sk has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
- Has zssk.sk's score changed over time?
- zssk.sk's overall score has declined by 2 points (from 85 to 83) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card