npu.cz
Národní památkový ústav
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Great
Summary
Oficiální webová prezentace. This website uses Apache hosted on VSHOSTING - VSHOSTING-CDN, CZ. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores good (85/100) and performance excellent (90/100). Top issue: Missing canonical link.
Oficiální webová prezentace
- CZ
- Hosted on VSHOSTING - VSHOSTING-CDN, CZ
Top issues to fix
8 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
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.
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.
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.
+2 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
569 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Oficiální webová prezentace
Contact
Email, phone, and address published on this site's own pages.
- webeditor@npu.cz
Meta tags
- Title
- Národní památkový ústav
- Description
- Oficiální webová prezentace
- Canonical
- Language
- cs
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
- https://npu.cz/site.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- VSHOSTING - VSHOSTING-CDN, CZ
- CDN provider
- —
- IP address
- 217.16.177.162
- ASN
- AS43541 (VSHOSTING - VSHOSTING-CDN, CZ)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- npu.cz
- Valid from
- Jun 30, 2026
- Valid to
- Sep 28, 2026
- Days until expiry
- 34
- SAN domains
- npu.cz, www.npu.cz
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 16 · H3 33
Links
162 internal · 14 external · 2 broken
Images
77 total · 0 missing alt
Scripts / Styles
25 scripts · 14 stylesheets
JS / CSS size
318 KB · 945 KB
Page size
224 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 3
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://npu.cz
- Final URL
- https://npu.cz/cs
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 565 ms
- HTML size
- 224 KB
- Redirect chain
- https://npu.cz → https://npu.cz/cs
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does npu.cz use?
- npu.cz is built with PHP, jQuery, Google Analytics, Apache.
- Is npu.cz secure (HTTPS)?
- Yes. npu.cz uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 28, 2026.
- Who hosts npu.cz?
- npu.cz is hosted on VSHOSTING - VSHOSTING-CDN, CZ.
- What is npu.cz's SEO score?
- npu.cz scored 70/100 for SEO in the latest analysis (fair).
- What is npu.cz's overall website score?
- npu.cz has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card