What technology does tzb-info.cz use?

tzb-info.cz is built with jQuery, Apache.

Is tzb-info.cz secure (HTTPS)?

Yes. tzb-info.cz uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Sep 17, 2026.

Who hosts tzb-info.cz?

Hosting provider information for tzb-info.cz is not available yet.

What is tzb-info.cz's SEO score?

tzb-info.cz scored 55/100 for SEO in the latest analysis (fair).

What is tzb-info.cz's overall website score?

tzb-info.cz has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.

tzb-info.cz

TZB-info - Stavebnictví. Úspory energií. Technická zařízení budov.

Last scanned Aug 24, 2026, 1:23 PM

Overall score

Fair

Summary

Odborný web pro stavebnictví, technická zařízení budov a úspory energií. This website uses Apache. SEO is fair (55/100) and accessibility is good (85/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Odborný web pro stavebnictví, technická zařízení budov a úspory energií. To nejlepší o stavbě a vytápění, větrání, klimatizaci, vodě a kanalizaci, obnovitelné energii a facility managementu. Oborová databáze firem a výrobků, právní předpisy, normy, technické tabulky a výpočty, diskusní fórum.

Top issues to fix

15 issues found · 4 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.
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 viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
TLS certificate expires in 23 days
Security
Renew soon or enable auto-renewal to avoid a browser-warning outage.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

+9 more issues — details in the sections below.

SEO

7 issue(s) found

100

Performance

679 ms

Security

HTTPS & header checks

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.

Facebook

Meta tags

Title: TZB-info - Stavebnictví. Úspory energií. Technická zařízení budov.
Description: Odborný web pro stavebnictví, technická zařízení budov a úspory energií. To nejlepší o stavbě a vytápění, větrání, klimatizaci, vodě a kanalizaci, obnovitelné energii a facility managementu. Oborová databáze firem a výrobků, právní předpisy, normy, technické tabulky a výpočty, diskusní fórum.
Canonical
Language: cs
Charset: utf-8
Viewport
Robots meta: max-snippet:-1, max-image-preview:large, max-video-preview:-1
Manifest

Technologies

Detected frameworks, languages, and tools.

jQuery Apache

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: Sectigo Limited
Subject: *.tzb-info.cz
Valid from: Dec 10, 2025
Valid to: Sep 17, 2026
Days until expiry: 23
SAN domains: *.tzb-info.cz, tzb-info.cz

Security headers

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

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 0 · H2 2 · H3 96

Links

55 internal · 119 external · 20 broken

Images

78 total · 0 missing alt

Scripts / Styles

19 scripts · 8 stylesheets

JS / CSS size

5.1 KB · 89 B

Page size

124 KB

Robots.txt & Sitemap

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

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://tzb-info.cz
Final URL: https://www.tzb-info.cz/
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 677 ms
HTML size: 124 KB
Redirect chain: https://tzb-info.cz → https://www.tzb-info.cz/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does tzb-info.cz use?: tzb-info.cz is built with jQuery, Apache.
Is tzb-info.cz secure (HTTPS)?: Yes. tzb-info.cz uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Sep 17, 2026.
Who hosts tzb-info.cz?: Hosting provider information for tzb-info.cz is not available yet.
What is tzb-info.cz's SEO score?: tzb-info.cz scored 55/100 for SEO in the latest analysis (fair).
What is tzb-info.cz's overall website score?: tzb-info.cz has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.

Top issues to fix

Organization

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Scan details

Related websites

Frequently asked questions