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lf.net

LF.net :: LF.net Netzwerksysteme GmbH :: Internet Service Provider in Stuttgart

Last scanned Jul 26, 2026, 5:17 AM

76

Overall score

Fair

Summary

LF.net Netzwerksysteme GmbH :: LF.net Netzwerksysteme GmbH :: Internet Service Provider in Stuttgart: Rechenzentrum, Webserver, Housing, Hosting, Einwahl, DSL, E-Mail, Firewall, Viruswall, Beratung, Sicherheit, Spamfilte… This website uses jQuery hosted on LFNET-AS01 - LF.net Netzwerksysteme GmbH, DE. SEO is fair (70/100) and accessibility is excellent (95/100). Security scores fair (65/100) and performance good (80/100). Top issue: Title longer than 60 characters.

LF.net Netzwerksysteme GmbH :: LF.net Netzwerksysteme GmbH :: Internet Service Provider in Stuttgart: Rechenzentrum, Webserver, Housing, Hosting, Einwahl, DSL, E-Mail, Firewall, Viruswall, Beratung, Sicherheit, Spamfilter

Germany
Hosted on LFNET-AS01 - LF.net Netzwerksysteme GmbH, DE

Top issues to fix

11 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.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • Slow estimated load (5.0s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

+5 more issues — details in the sections below.

70

SEO

5 issue(s) found

80

Performance

4.97 s

65

Security

HTTPS & header checks

95

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.

LF.net Netzwerksysteme GmbH :: LF.net Netzwerksysteme GmbH :: Internet Service Provider in Stuttgart: Rechenzentrum, Webserver, Housing, Hosting, Einwahl, DSL, E-Mail, Firewall, Viruswall, Beratung, Sicherheit, Spamfilter

Contact

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

Source: https://www.lf.net/support/

Meta tags

Title
LF.net :: LF.net Netzwerksysteme GmbH :: Internet Service Provider in Stuttgart
Description
LF.net Netzwerksysteme GmbH :: LF.net Netzwerksysteme GmbH :: Internet Service Provider in Stuttgart: Rechenzentrum, Webserver, Housing, Hosting, Einwahl, DSL, E-Mail, Firewall, Viruswall, Beratung, Sicherheit, Spamfilter
Canonical
Language
de
Charset
utf-8
Viewport
Robots meta
follow
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.

jQuery

Hosting & CDN

CDN provider
—
IP address
62.50.112.200
ASN
AS12374 (LFNET-AS01 - LF.net Netzwerksysteme GmbH, DE)

DNS records

TypeValue
A
  • 62.50.112.200
AAAA—
MX
  • pmx01.mail.lf.net
  • fb-mx.lf.net
TXT—
NS—
CAA
  • 128 issue "letsencrypt.org"
CNAME
  • e3d68525-f64d-4957-93ba-f5b35e354440.cname.lf.net
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
www.lf.net
Valid from
Jun 15, 2026
Valid to
Sep 13, 2026
Days until expiry
49
SAN domains
www.lf.net

Security headers

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

Compression: none · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

15 internal · 0 external · 0 broken

Images

6 total · 0 missing alt

Scripts / Styles

5 scripts · 3 stylesheets

JS / CSS size

392 KB · 19.5 KB

Page size

9.3 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
4
sitemap.xml
Found
URLs in sitemap
12

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

Accessibility issues

  • Missing viewport meta tag

Scan details

Requested URL
https://lf.net
Final URL
https://www.lf.net//
HTTP status
200
HTTP version
HTTP/2
Response time
4.97 s
HTML size
9.3 KB
Redirect chain
https://lf.net → https://www.lf.net//

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does lf.net use?
lf.net is built with jQuery.
Is lf.net secure (HTTPS)?
Yes. lf.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 13, 2026.
Who hosts lf.net?
lf.net is hosted on LFNET-AS01 - LF.net Netzwerksysteme GmbH, DE.
What is lf.net's SEO score?
lf.net scored 70/100 for SEO in the latest analysis (fair).
What is lf.net's overall website score?
lf.net has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.