postsignum.cz
Certifikační autorita, kvalifikovaný certifikát, kvalifikované časové razítko, Bezpečný klíč, USB token | Certifikační autorita PostSignum
Last scanned Aug 24, 2026, 1:23 PM
Overall score
Great
Summary
Certifikační autorita PostSignum. This website uses Apache. SEO is fair (65/100) and accessibility is excellent (95/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
Certifikační autorita PostSignum
Top issues to fix
9 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.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
+3 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
332 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Certifikační autorita PostSignum
Meta tags
- Title
- Certifikační autorita, kvalifikovaný certifikát, kvalifikované časové razítko, Bezpečný klíč, USB token | Certifikační autorita PostSignum
- Description
- Certifikační autorita PostSignum
- Canonical
- Language
- cs
- Charset
- iso-8859-2
- Viewport
- Robots meta
- 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
- DigiCert Inc
- Subject
- www.postsignum.cz
- Valid from
- Mar 17, 2026
- Valid to
- Oct 1, 2026
- Days until expiry
- 37
- SAN domains
- www.postsignum.cz, rse.postsignum.eu, rse.postsignum.cz, rse.postsignum.cms2.cz, certifikatonline.cz, postsignum.cms2.cz, postsignum.cz, postsignum.eu, www.certifikatonline.cz, www.postsignum.cms2.cz, www.postsignum.eu, www2.postsignum.cz, www3.postsignum.cms2.cz, www3.postsignum.cz, www4.postsignum.cz
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 2 · H3 4
Links
45 internal · 3 external · 0 broken
Images
16 total · 0 missing alt
Scripts / Styles
10 scripts · 3 stylesheets
JS / CSS size
429 KB · 60.4 KB
Page size
27.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing viewport meta tag
Scan details
- Requested URL
- https://postsignum.cz
- Final URL
- https://www.postsignum.cz//
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 332 ms
- HTML size
- 27.5 KB
- Redirect chain
- https://postsignum.cz → https://www.postsignum.cz//
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does postsignum.cz use?
- postsignum.cz is built with PHP, jQuery, Google Analytics, Apache.
- Is postsignum.cz secure (HTTPS)?
- Yes. postsignum.cz uses TLS 1.2 with a certificate issued by DigiCert Inc, valid until Oct 1, 2026.
- Who hosts postsignum.cz?
- Hosting provider information for postsignum.cz is not available yet.
- What is postsignum.cz's SEO score?
- postsignum.cz scored 65/100 for SEO in the latest analysis (fair).
- What is postsignum.cz's overall website score?
- postsignum.cz has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card