Is nyx.cz secure (HTTPS)?

Yes. nyx.cz uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.

nyx.cz is hosted on GREENDATA - Greendata s.r.o., CZ.

What is nyx.cz's SEO score?

nyx.cz scored 60/100 for SEO in the latest analysis (fair).

What is nyx.cz's overall website score?

nyx.cz has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.

nyx.cz

nyx.cz :: úvodní stránka

Last scanned Jul 26, 2026, 11:49 AM

Overall score

Fair

Summary

This website uses Nginx hosted on GREENDATA - Greendata s.r.o., CZ. SEO is fair (60/100) and accessibility is fair (50/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing meta description.

Hosted on GREENDATA - Greendata s.r.o., CZ

Top issues to fix

9 issues found · 5 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
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 canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.

+3 more issues — details in the sections below.

SEO

5 issue(s) found

100

Performance

135 ms

Security

HTTPS & header checks

Accessibility

3 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: nyx@nyx.cz

Meta tags

Title: nyx.cz :: úvodní stránka
Description
Canonical
Language
Charset: UTF-8
Viewport: width=device-width,initial-scale=1,maximum-scale=3,user-scalable=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: GREENDATA - Greendata s.r.o., CZ
CDN provider: —
IP address: 5.59.97.42
ASN: AS57707 (GREENDATA - Greendata s.r.o., CZ)

DNS records

Type	Value
A	5.59.97.42
AAAA	—
MX	aspmx.l.google.com alt1.aspmx.l.google.com aspmx5.googlemail.com alt2.aspmx.l.google.com aspmx2.googlemail.com aspmx4.googlemail.com aspmx3.googlemail.com
TXT	v=spf1 a include:_spf.google.com ~all google-site-verification=titoSVuUs_1C0D4VD-g_c4gqSm28rQHPRW8dAE3Y36g
NS	ns1.ignum.com ns2.ignum.cz
CAA	0 issue "letsencrypt.org"
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: nyx.cz
Valid from: Jul 8, 2026
Valid to: Oct 6, 2026
Days until expiry: 69
SAN domains: nyx.cz

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 2 · H3 0

Links

105 internal · 0 external · 0 broken

Images

1 total · 1 missing alt

Scripts / Styles

1 scripts · 1 stylesheets

JS / CSS size

428 KB · 96.2 KB

Page size

12.9 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 1
sitemap.xml: Found
URLs in sitemap: 3

SEO issues

Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags

Scan details

Requested URL: https://nyx.cz
Final URL: https://nyx.cz
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 135 ms
HTML size: 12.9 KB
Redirect chain: https://nyx.cz

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does nyx.cz use?: nyx.cz is built with Nginx.
Is nyx.cz secure (HTTPS)?: Yes. nyx.cz uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.
Who hosts nyx.cz?: nyx.cz is hosted on GREENDATA - Greendata s.r.o., CZ.
What is nyx.cz's SEO score?: nyx.cz scored 60/100 for SEO in the latest analysis (fair).
What is nyx.cz's overall website score?: nyx.cz has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.