What technology does web4u.cz use?

web4u.cz is built with PHP, jQuery, Google Analytics.

Is web4u.cz secure (HTTPS)?

Yes. web4u.cz uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 25, 2026.

web4u.cz is hosted on WEB4U - Web4U s.r.o., CZ.

What is web4u.cz's SEO score?

web4u.cz scored 70/100 for SEO in the latest analysis (fair).

What is web4u.cz's overall website score?

web4u.cz has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.

web4u.cz

Profesionální webové služby pro vaši online prezentaci - Web4U

Last scanned Jul 25, 2026, 2:25 PM · 2 views

Overall score

Great

Summary

Web4u nabízí kvalitní webové služby, které umožní vaší online prezentaci posunout se o úroveň výš. This website uses Google Analytics hosted on WEB4U - Web4U s.r.o., CZ. SEO is fair (70/100) and accessibility is fair (55/100). Security scores excellent (95/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

Web4u nabízí kvalitní webové služby, které umožní vaší online prezentaci posunout se o úroveň výš. Vyberte si z registrace domény, hostingu a dalších nabízených služeb.

Hosted on WEB4U - Web4U s.r.o., CZ

Top issues to fix

9 issues found · 2 high priority

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.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.
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

463 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.

Organization

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

Web4u nabízí kvalitní webové služby, které umožní vaší online prezentaci posunout se o úroveň výš. Vyberte si z registrace domény, hostingu a dalších nabízených služeb.

Facebook

Meta tags

Title: Profesionální webové služby pro vaši online prezentaci - Web4U
Description: Web4u nabízí kvalitní webové služby, které umožní vaší online prezentaci posunout se o úroveň výš. Vyberte si z registrace domény, hostingu a dalších nabízených služeb.
Canonical
Language
Charset: utf-8
Viewport
Robots meta: index,follow
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP jQuery Google Analytics

Hosting & CDN

Hosting provider: WEB4U - Web4U s.r.o., CZ
CDN provider: —
IP address: 81.91.86.19
ASN: AS39790 (WEB4U - Web4U s.r.o., CZ)

DNS records

Type	Value
A	81.91.86.19
AAAA	2001:1568::19
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: web4u.cz
Valid from: Jun 27, 2026
Valid to: Sep 25, 2026
Days until expiry: 61
SAN domains: web4u.cz, www.web4u.cz

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 6 · H3 12

Links

42 internal · 13 external · 0 broken

Images

1 total · 1 missing alt

Scripts / Styles

23 scripts · 5 stylesheets

JS / CSS size

368 KB · 228 KB

Page size

44.3 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 10
sitemap.xml: Found
URLs in sitemap: 118

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters
Missing canonical link
No structured data (JSON-LD) found
Missing OpenGraph tags

Scan details

Requested URL: https://web4u.cz
Final URL: https://www.web4u.cz/
HTTP status: 200
HTTP version: HTTP/2
Response time: 463 ms
HTML size: 44.3 KB
Redirect chain: https://web4u.cz → https://www.web4u.cz/

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Frequently asked questions

What technology does web4u.cz use?: web4u.cz is built with PHP, jQuery, Google Analytics.
Is web4u.cz secure (HTTPS)?: Yes. web4u.cz uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 25, 2026.
Who hosts web4u.cz?: web4u.cz is hosted on WEB4U - Web4U s.r.o., CZ.
What is web4u.cz's SEO score?: web4u.cz scored 70/100 for SEO in the latest analysis (fair).
What is web4u.cz's overall website score?: web4u.cz has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.