master.cz
Last scanned Jul 25, 2026, 4:25 AM · 2 views
Overall score
Fair
Summary
This website is hosted on MASTER-AS - MasterDC s.r.o., CZ. SEO is poor (35/100) and accessibility is fair (50/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing <title>.
- CZ
- Hosted on MASTER-AS - MasterDC s.r.o., CZ
Top issues to fix
10 issues found · 4 high priority
Missing title tag
SEOAdd a unique, descriptive <title> tag — it's the single most important on-page SEO element.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
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.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
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.
+4 more issues — details in the sections below.
SEO
8 issue(s) found
Performance
150 ms
Security
HTTPS & header checks
Accessibility
3 issue(s) found
Meta tags
- Title
- Description
- Canonical
- Language
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=0.75
- Robots meta
- noindex,nofollow
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- MASTER-AS - MasterDC s.r.o., CZ
- CDN provider
- —
- IP address
- 80.79.16.235
- ASN
- AS24971 (MASTER-AS - MasterDC s.r.o., CZ)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Asseco Data Systems S.A.
- Subject
- *.master.cz
- Valid from
- Jul 9, 2026
- Valid to
- Jan 24, 2027
- Days until expiry
- 183
- SAN domains
- *.master.cz, master.cz
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
3 total · 3 missing alt
Scripts / Styles
0 scripts · 0 stylesheets
JS / CSS size
0 B · 7.2 KB
Page size
268 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing <title>
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
- Missing <html lang> attribute
Scan details
- Requested URL
- https://master.cz
- Final URL
- https://master.cz
- HTTP status
- 403
- HTTP version
- HTTP/2
- Response time
- 145 ms
- HTML size
- 268 KB
- Redirect chain
- https://master.cz
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does master.cz use?
- We did not detect any specific technologies for master.cz in the latest scan.
- Is master.cz secure (HTTPS)?
- Yes. master.cz uses TLS 1.3 with a certificate issued by Asseco Data Systems S.A., valid until Jan 24, 2027.
- Who hosts master.cz?
- master.cz is hosted on MASTER-AS - MasterDC s.r.o., CZ.
- What is master.cz's SEO score?
- master.cz scored 35/100 for SEO in the latest analysis (poor).
- What is master.cz's overall website score?
- master.cz has an overall SiteGraph score of 71/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card