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SGSiteGraph

nm.cz

Národní muzeum

Last scanned Jul 27, 2026, 10:43 AM

74

Overall score

Fair

Summary

This website uses Apache hosted on VSHOSTING - VSHOSTING-CDN, CZ. SEO is fair (55/100) and accessibility is good (80/100). Security scores excellent (90/100) and performance good (75/100). Top issue: Missing meta description.

CZ
Hosted on VSHOSTING - VSHOSTING-CDN, CZ

Top issues to fix

8 issues found · 3 high priority

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • No H1 heading found

    SEO

    Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

+2 more issues — details in the sections below.

55

SEO

6 issue(s) found

75

Performance

1.16 s

90

Security

HTTPS & header checks

80

Accessibility

2 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Meta tags

Title
Národní muzeum
Description
Canonical
Language
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0, user-scalable=yes
Robots meta
index,follow
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
og:description
og:type
og:url

Twitter Card

twitter:card
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

CDN provider
IP address
93.185.100.185
ASN
AS43541 (VSHOSTING - VSHOSTING-CDN, CZ)

DNS records

TypeValue
A
  • 93.185.100.185
AAAA
MX
  • nm-cz.mail.protection.outlook.com
TXT
  • google-site-verification=U02DJGpFcN9Wqpxpw4nR2ybaO741-57eGG6G2sCdLP4
  • adobe-idp-site-verification=645b89833a6b9aaefa00268aaa3afa026a58f6c503f090dd64c6691cfcf93a81
  • apple-domain-verification=foAJEHze4A3e0Mhh
  • v=spf1 a:mail1.colosseum.eu include:spf.protection.outlook.com include:spf.nethost.cz -all
  • anthropic-domain-verification-4z7p8m=1NuNmWQqb52cniLwyW4sbeSBb
NS
  • sns.vol.cz
  • ns.czi.cz
CAA
CNAME
  • nm.cz
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
Let's Encrypt
Subject
nm.cz
Valid from
Jun 24, 2026
Valid to
Sep 22, 2026
Days until expiry
57
SAN domains
nm.cz, www.nm.cz

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyEnabled
  • Permissions-PolicyMissing

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 0 · H2 9 · H3 33

Links

124 internal · 26 external · 0 broken

Images

63 total · 0 missing alt

Scripts / Styles

18 scripts · 3 stylesheets

JS / CSS size

1.8 MB · 9.5 KB

Page size

152 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • No H1 heading found
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • No H1 heading found
  • Missing <html lang> attribute

Scan details

Requested URL
https://nm.cz
Final URL
https://www.nm.cz/
HTTP status
200
HTTP version
HTTP/1.1
Response time
1.16 s
HTML size
152 KB
Redirect chain
https://nm.cz → http://www.nm.cz/ → https://www.nm.cz/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does nm.cz use?
nm.cz is built with PHP, jQuery, Google Analytics, Meta Pixel, Apache.
Is nm.cz secure (HTTPS)?
Yes. nm.cz uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Sep 22, 2026.
Who hosts nm.cz?
nm.cz is hosted on VSHOSTING - VSHOSTING-CDN, CZ.
What is nm.cz's SEO score?
nm.cz scored 55/100 for SEO in the latest analysis (fair).
What is nm.cz's overall website score?
nm.cz has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.