What technology does westermann.de use?

westermann.de is built with Nginx.

Is westermann.de secure (HTTPS)?

Yes. westermann.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 27, 2026.

Who hosts westermann.de?

westermann.de is hosted on GDS-1 - Gaertner Datensysteme GmbH & Co. KG, DE.

What is westermann.de's SEO score?

westermann.de scored 75/100 for SEO in the latest analysis (fair).

What is westermann.de's overall website score?

westermann.de has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

Is westermann.de hiring?

westermann.de has a careers page; check it directly for current openings.

westermann.de

Bildungsmedien und Services für Lehrkräfte – Westermann

Last scanned Jul 26, 2026, 5:17 AM · 1 view

Overall score

Great

Summary

Das Programm der Westermann Gruppe von der Vorschule bis zur Berufsschule. This website uses Nginx hosted on GDS-1 - Gaertner Datensysteme GmbH & Co. KG, DE. SEO is good (75/100) and accessibility is excellent (90/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: No H1 heading found.

Das Programm der Westermann Gruppe von der Vorschule bis zur Berufsschule.

Germany

Hosted on GDS-1 - Gaertner Datensysteme GmbH & Co. KG, DE

Top issues to fix

6 issues found · 1 high priority

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.
TLS certificate expires in 30 days
Security
Renew soon or enable auto-renewal to avoid a browser-warning outage.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEO
Add og:title/og:description/og:image so shared links render a proper preview card.
1 broken link on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

3 issue(s) found

Performance

411 ms

100

Security

HTTPS & header checks

Accessibility

1 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.

Das Programm der Westermann Gruppe von der Vorschule bis zur Berufsschule.

Contact

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

Phone: +4953112325125

Meta tags

Title: Bildungsmedien und Services für Lehrkräfte – Westermann
Description: Das Programm der Westermann Gruppe von der Vorschule bis zur Berufsschule.
Canonical: https://www.westermann.de/
Language: de
Charset: UTF-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: GDS-1 - Gaertner Datensysteme GmbH & Co. KG, DE
CDN provider: —
IP address: 217.13.73.82
ASN: AS24956 (GDS-1 - Gaertner Datensysteme GmbH & Co. KG, DE)

DNS records

Type	Value
A	217.13.73.82
AAAA	—
MX	westermann-de.mail.protection.outlook.com
TXT	google-site-verification=sKNjh88bSZmLM1D82Nq9qOf8UEGYcoLn-EfJKw7KFgI v=spf1 include:spf.westermann.de -all swisssign-check=rhPwmh-ZTqWapHUd5yHt-DAumRk google-site-verification=oXwbh-JbnYp-uGt9qDtDenwuGJ-PrYi5m1KrIN6hEuE
NS	ns2.pop-hannover.net ns.gaertner.de ns.westermann.de
CAA	—
CNAME	westermann.de
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: www.westermann.de
Valid from: May 29, 2026
Valid to: Aug 27, 2026
Days until expiry: 30
SAN domains: www.westermann.de

Security headers

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

Compression: gzip · 2 cookie(s) observed

Content & assets

Headings

H1 0 · H2 10 · H3 2

Links

66 internal · 18 external · 1 broken

Images

23 total · 0 missing alt

Scripts / Styles

7 scripts · 4 stylesheets

JS / CSS size

557 KB · 377 KB

Page size

63.6 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 41
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL: https://westermann.de
Final URL: https://www.westermann.de/
HTTP status: 200
HTTP version: HTTP/2
Response time: 410 ms
HTML size: 63.6 KB
Redirect chain: https://westermann.de → https://www.westermann.de/

See something wrong on this report? Request a correction

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