What technology does coolnet.cz use?

coolnet.cz is built with Nginx.

Is coolnet.cz secure (HTTPS)?

Yes. coolnet.cz uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 13, 2026.

Who hosts coolnet.cz?

Hosting provider information for coolnet.cz is not available yet.

What is coolnet.cz's SEO score?

coolnet.cz scored 50/100 for SEO in the latest analysis (fair).

What is coolnet.cz's overall website score?

coolnet.cz has an overall SiteGraph score of 68/100, combining SEO, performance, security, and accessibility.

coolnet.cz

o COOLNET o

Last scanned Jul 26, 2026, 1:49 PM · 1 view

Overall score

Fair

Summary

This website uses Nginx. SEO is fair (50/100) and accessibility is poor (45/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

14 issues found · 5 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.
Over half of images are missing alt text
Accessibility
Add alt attributes to images — screen readers depend on them, and they help image SEO.
Missing viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

+8 more issues — details in the sections below.

SEO

7 issue(s) found

100

Performance

136 ms

Security

HTTPS & header checks

Accessibility

4 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.

Contact

Email, phone, and address published on this site's own pages.

Email: info@coolnet.cz

Technologies

Detected frameworks, languages, and tools.

Nginx

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 1.3
Issuer: Let's Encrypt
Subject: www.coolnet.cz
Valid from: Jul 15, 2026
Valid to: Oct 13, 2026
Days until expiry: 76
SAN domains: coolnet.cz, www.coolnet.cz

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 1 · H3 1

Links

13 internal · 5 external · 18 broken

Images

5 total · 5 missing alt

Scripts / Styles

0 scripts · 1 stylesheets

JS / CSS size

0 B · 0 B

Page size

5.5 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
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://coolnet.cz
Final URL: https://coolnet.cz
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 136 ms
HTML size: 5.5 KB
Redirect chain: https://coolnet.cz

See something wrong on this report? Request a correction

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