librus.pl
Librus - Systemy informatyczne wspierające edukację
Last scanned Jul 18, 2026, 8:49 PM
Overall score
Excellent
Top issues to fix
5 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
TLS certificate expires in 16 days
SecurityRenew soon or enable auto-renewal to avoid a browser-warning outage.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
3 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
Summary
Systemy informatyczne oraz usługi wspierające polską edukację. This website uses WordPress hosted on IQPL-AS - IQ PL Sp. z o.o., PL. SEO is excellent (100/100) and accessibility is excellent (100/100). Security scores good (75/100) and performance excellent (90/100).
SEO
0 issue(s) found
Performance
352 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Librus Spółka z ograniczoną odpowiedzialnością sp. k. (dawniej Librus Sp. z o. o.)
Contact
Email, phone, and address published on this site's own pages.
- librus@librus.pl
- Address
- Korfantego 193, Katowice, 40-153, Poland
Meta tags
- Title
- Librus - Systemy informatyczne wspierające edukację
- Description
- Systemy informatyczne oraz usługi wspierające polską edukację. Nasze kluczowe rozwiązanie to coś więcej niż dziennik elektroniczny.
- Canonical
- https://www.librus.pl/
- Language
- pl-PL
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- IQPL-AS - IQ PL Sp. z o.o., PL
- CDN provider
- —
- IP address
- 46.248.183.30
- ASN
- AS47544 (IQPL-AS - IQ PL Sp. z o.o., PL)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert Inc
- Subject
- *.librus.pl
- Valid from
- Jul 15, 2025
- Valid to
- Aug 3, 2026
- Days until expiry
- 16
- SAN domains
- *.librus.pl, librus.pl
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 7 · H3 16
Links
39 internal · 26 external · 3 broken
Images
50 total · 0 missing alt
Scripts / Styles
11 scripts · 2 stylesheets
JS / CSS size
324 KB · 671 KB
Page size
69.4 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
No SEO issues detected.
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://librus.pl
- Final URL
- https://www.librus.pl/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 351 ms
- HTML size
- 69.4 KB
- Redirect chain
- https://librus.pl → https://www.librus.pl/
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Frequently asked questions
- What technology does librus.pl use?
- librus.pl is built with WordPress, jQuery.
- Is librus.pl secure (HTTPS)?
- Yes. librus.pl uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Aug 3, 2026.
- Who hosts librus.pl?
- librus.pl is hosted on IQPL-AS - IQ PL Sp. z o.o., PL.
- What is librus.pl's SEO score?
- librus.pl scored 100/100 for SEO in the latest analysis (excellent).
- What is librus.pl's overall website score?
- librus.pl has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
- What company operates librus.pl?
- librus.pl is operated by Librus Spółka z ograniczoną odpowiedzialnością sp. k. (dawniej Librus Sp. z o. o.).
OpenGraph & Twitter Card
OpenGraph
Twitter Card