What technology does zf.com use?

We did not detect any specific technologies for zf.com in the latest scan.

Is zf.com secure (HTTPS)?

Yes. zf.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 2, 2026.

Hosting provider information for zf.com is not available yet.

What is zf.com's SEO score?

zf.com scored 90/100 for SEO in the latest analysis (excellent).

What is zf.com's overall website score?

zf.com has an overall SiteGraph score of 97/100, combining SEO, performance, security, and accessibility.

Has zf.com's score changed over time?

zf.com's overall score has declined by 1 point (from 98 to 97) since Jul 22, 2026.

zf.com

Homepage ZF Friedrichshafen AG - ZF

Last scanned Jul 29, 2026, 11:00 PM · 14 views

Overall score

Excellent

Summary

ZF is a global technology company and supplies systems for passenger cars, commercial vehicles and industrial technology. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: robots.txt not found.

ZF is a global technology company and supplies systems for passenger cars, commercial vehicles and industrial technology.

Top issues to fix

3 issues found

robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

2 issue(s) found

100

Performance

577 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-1 overall since Jul 22, 2026

Overall: 97
SEO: 90
Security: 100
Performance: 100
Accessibility: 100

Organization

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

ZF is a global technology company and supplies systems for passenger cars, commercial vehicles and industrial technology.

Meta tags

Title: Homepage ZF Friedrichshafen AG - ZF
Description: ZF is a global technology company and supplies systems for passenger cars, commercial vehicles and industrial technology.
Canonical: https://www.zf.com/mobile/en/homepage/homepage.html
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1.0, maximum-scale=2.0,user-scalable=1
Robots meta: index,follow
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: CloudFront
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: www.zf.com
Valid from: Jun 4, 2026
Valid to: Sep 2, 2026
Days until expiry: 34
SAN domains: ci-portal.zf.com, customers.zf.com, envisioneering.zf.com, press.zf.com, www.zf.com, zf-ventures.zf.com, zukunft-ventures.zf.com, zukunftmobility.zf.com

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 13 · H3 16

Links

18 internal · 2 external · 20 broken

Images

32 total · 0 missing alt

Scripts / Styles

4 scripts · 1 stylesheets

JS / CSS size

0 B · 0 B

Page size

65.9 KB

Robots.txt & Sitemap

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

SEO issues

robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://zf.com
Final URL: https://www.zf.com/mobile/en/homepage/homepage.html
HTTP status: 200
HTTP version: HTTP/2
Response time: 576 ms
HTML size: 65.9 KB
Redirect chain: https://zf.com → https://www.zf.com/ → https://www.zf.com/mobile/en/homepage/homepage.html

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Frequently asked questions

What technology does zf.com use?: We did not detect any specific technologies for zf.com in the latest scan.
Is zf.com secure (HTTPS)?: Yes. zf.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 2, 2026.
Who hosts zf.com?: Hosting provider information for zf.com is not available yet.
What is zf.com's SEO score?: zf.com scored 90/100 for SEO in the latest analysis (excellent).
What is zf.com's overall website score?: zf.com has an overall SiteGraph score of 97/100, combining SEO, performance, security, and accessibility.
Has zf.com's score changed over time?: zf.com's overall score has declined by 1 point (from 98 to 97) since Jul 22, 2026.