What technology does michaelbach.de use?

michaelbach.de is built with Bootstrap, Apache.

Is michaelbach.de secure (HTTPS)?

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

Who hosts michaelbach.de?

michaelbach.de is hosted on CRONON-AS - Vautron Rechenzentrum AG, DE.

What is michaelbach.de's SEO score?

michaelbach.de scored 95/100 for SEO in the latest analysis (excellent).

What is michaelbach.de's overall website score?

michaelbach.de has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.

Has michaelbach.de's score changed over time?

michaelbach.de's overall score has stayed steady at 87/100 since Jul 27, 2026.

michaelbach.de

Home

Last scanned Aug 4, 2026, 11:00 PM · 12 views

Overall score

Great

Summary

Michael Bach’s home page, starting point for all content. This website uses Apache hosted on CRONON-AS - Vautron Rechenzentrum AG, DE. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: sitemap.xml not found.

Michael Bach’s home page, starting point for all content

Germany

Hosted on CRONON-AS - Vautron Rechenzentrum AG, DE

Top issues to fix

7 issues found · 2 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.
TLS certificate expires in 28 days
Security
Renew soon or enable auto-renewal to avoid a browser-warning outage.
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.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

1 issue(s) found

Performance

147 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

0 overall since Jul 27, 2026

Overall: 87
SEO: 95
Security: 65
Performance: 90
Accessibility: 100

Organization

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

Michael Bach’s home page, starting point for all content

GitHub X (Twitter)

Contact

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

Email: bach@uni-freiburg.de

Meta tags

Title: Home
Description: Michael Bach’s home page, starting point for all content
Canonical: https://michaelbach.de/
Language: en
Charset: UTF-8
Viewport: width=device-width, initial-scale=1.0, user-scalable=yes
Robots meta: index,follow
Manifest

Technologies

Detected frameworks, languages, and tools.

Bootstrap Apache

Hosting & CDN

Hosting provider: CRONON-AS - Vautron Rechenzentrum AG, DE
CDN provider: —
IP address: 83.243.58.29
ASN: AS25504 (CRONON-AS - Vautron Rechenzentrum AG, DE)

DNS records

Type	Value
A	83.243.58.29
AAAA	—
MX	mail.netbeat.de
TXT	v=spf1 a mx ip4:46.151.162.0/24 ip4:46.151.164.0/24 ip4:83.243.58.0/24 ?all
NS	ns1.n5q.de ns2.n5q.de
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: michaelbach.de
Valid from: Jun 4, 2026
Valid to: Sep 2, 2026
Days until expiry: 28
SAN domains: michaelbach.de, www.michaelbach.de

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 7 · H3 0

Links

26 internal · 30 external · 2 broken

Images

8 total · 0 missing alt

Scripts / Styles

3 scripts · 3 stylesheets

JS / CSS size

80.1 KB · 317 KB

Page size

15.6 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 5
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

sitemap.xml not found

Scan details

Requested URL: https://michaelbach.de
Final URL: https://michaelbach.de
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 147 ms
HTML size: 15.6 KB
Redirect chain: https://michaelbach.de

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Frequently asked questions

What technology does michaelbach.de use?: michaelbach.de is built with Bootstrap, Apache.
Is michaelbach.de secure (HTTPS)?: Yes. michaelbach.de uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 2, 2026.
Who hosts michaelbach.de?: michaelbach.de is hosted on CRONON-AS - Vautron Rechenzentrum AG, DE.
What is michaelbach.de's SEO score?: michaelbach.de scored 95/100 for SEO in the latest analysis (excellent).
What is michaelbach.de's overall website score?: michaelbach.de has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
Has michaelbach.de's score changed over time?: michaelbach.de's overall score has stayed steady at 87/100 since Jul 27, 2026.