Skip to main content
SGSiteGraph

klett.de

Ernst Klett Verlag

Last scanned Jul 27, 2026, 9:43 AM · 1 view

82

Overall score

Great

Summary

Der Ernst Klett Verlag bietet Ihnen eine breitgefächerte Auswahl an Schulbüchern, Lernsoftware und Materialien für Lernende und Lehrende. This website uses Express hosted on K-NET_SAAS - Klett IT GmbH, DE behind Cloudflare CDN. SEO is fair (55/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.

Der Ernst Klett Verlag bietet Ihnen eine breitgefächerte Auswahl an Schulbüchern, Lernsoftware und Materialien für Lernende und Lehrende. Besuchen Sie unseren Onlineshop und überzeugen Sie sich selbst von unseren Produkten

Germany
Hosted on K-NET_SAAS - Klett IT GmbH, DE

Top issues to fix

8 issues found · 2 high priority

  • 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.

  • 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.

  • 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.

+2 more issues — details in the sections below.

55

SEO

7 issue(s) found

100

Performance

362 ms

90

Security

HTTPS & header checks

90

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.

Der Ernst Klett Verlag bietet Ihnen eine breitgefächerte Auswahl an Schulbüchern, Lernsoftware und Materialien für Lernende und Lehrende. Besuchen Sie unseren Onlineshop und überzeugen Sie sich selbst von unseren Produkten

Contact

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

Source: https://www.klett.de/contact

Meta tags

Title
Ernst Klett Verlag
Description
Der Ernst Klett Verlag bietet Ihnen eine breitgefächerte Auswahl an Schulbüchern, Lernsoftware und Materialien für Lernende und Lehrende. Besuchen Sie unseren Onlineshop und überzeugen Sie sich selbst von unseren Produkten
Canonical
Language
de
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

ExpressNode.js

Hosting & CDN

CDN provider
Cloudflare
IP address
185.186.223.83
ASN
AS200393 (K-NET_SAAS - Klett IT GmbH, DE)

DNS records

TypeValue
A
  • 185.186.223.83
AAAA—
MX—
TXT—
NS—
CAA—
CNAME
  • webshop.prod.kca.shield.k-net.io
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
ZeroSSL GmbH
Subject
www.klett.de
Valid from
Jun 29, 2026
Valid to
Sep 27, 2026
Days until expiry
62
SAN domains
www.klett.de, klett.de

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

3 scripts · 1 stylesheets

JS / CSS size

1.1 KB · 107 B

Page size

4.5 KB

Robots.txt & Sitemap

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

SEO issues

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

Accessibility issues

  • No H1 heading found

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://klett.de
Final URL
https://www.klett.de/
HTTP status
200
HTTP version
HTTP/2
Response time
362 ms
HTML size
4.5 KB
Redirect chain
https://klett.de → https://www.klett.de/

See something wrong on this report? Request a correction

Related websites

Same technology stack

indusappstore.com

Indus Appstore

98
expressgoogle-analyticsastro
Cloudflare· Cloudflare

jami.net

Jami

98
expressnginxjquery
OVH - OVH SAS, FR

userway.org

UserWay | Web Accessibility Solutions

98
expressgoogle-analyticsmeta-pixel
AWS· CloudFront

ntnews.com

Namasthe Telangana : Telugu News |Telangna news |Latest Telugu News | తెలుగు వార్తలు

97
wordpressexpressnginx
AWS· CloudFront

novakidschool.com

Online English classes for kids | English for children Online | Novakid School

96
expressmeta-pixelnodejs
AWS· CloudFront

serpstat.com

Serpstat – Marketing Tool for SEO and Content Tasks

96
expressnginxnodejs
HETZNER-AS - Hetzner Online GmbH, DE

Frequently asked questions

What technology does klett.de use?
klett.de is built with Express, Node.js.
Is klett.de secure (HTTPS)?
Yes. klett.de uses TLS 1.3 with a certificate issued by ZeroSSL GmbH, valid until Sep 27, 2026.
Who hosts klett.de?
klett.de is hosted on K-NET_SAAS - Klett IT GmbH, DE, behind Cloudflare CDN.
What is klett.de's SEO score?
klett.de scored 55/100 for SEO in the latest analysis (fair).
What is klett.de's overall website score?
klett.de has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
Is klett.de hiring?
klett.de has a careers page; check it directly for current openings.