Is rki.de secure (HTTPS)?

Yes. rki.de uses TLS 1.3 with a certificate issued by D-Trust GmbH, valid until Oct 21, 2026.

rki.de is hosted on ITZBund - ITZBund, DE.

What is rki.de's SEO score?

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

What is rki.de's overall website score?

rki.de has an overall SiteGraph score of 99/100, combining SEO, performance, security, and accessibility.

What company operates rki.de?

rki.de is operated by Robert Koch-Institut. Weitere Informationen zum RKI

rki.de

RKI - Startseite

Last scanned Jul 25, 2026, 4:25 AM · 6 views

Overall score

Excellent

Summary

Weitere Informationen zum RKI. This website uses Apache hosted on ITZBund - ITZBund, DE. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Multiple H1 headings found.

Robert Koch-Institut

Weitere Informationen zum RKI

Nordufer 20, Berlin, 13353, DE

Hosted on ITZBund - ITZBund, DE

Top issues to fix

2 issues found

Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
9 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

1 issue(s) found

100

Performance

418 ms

100

Security

HTTPS & header checks

100

Accessibility

0 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.

Robert Koch-Institut

Weitere Informationen zum RKI

LinkedIn YouTube

Contact

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

Email: webmaster@rki.de
Phone: +49 30 18754 0
Address: Nordufer 20, Berlin, 13353, DE

Meta tags

Title: RKI - Startseite
Description: Das Robert Koch-Institut ist die zentrale Einrichtung der Bundesregierung auf dem Gebiet der Krankheitsüberwachung und –prävention.
Canonical: https://www.rki.de/DE/Home/home_node.html
Language: de
Charset: UTF-8
Viewport: width=device-width, initial-scale=1.0, maximum-scale=5.0, user-scalable=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Apache

Hosting & CDN

Hosting provider: ITZBund - ITZBund, DE
CDN provider: —
IP address: 80.245.144.175
ASN: AS35704 (ITZBund - ITZBund, DE)

DNS records

Type	Value
A	80.245.144.175
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: D-Trust GmbH
Subject: www.rki.de
Valid from: Apr 6, 2026
Valid to: Oct 21, 2026
Days until expiry: 88
SAN domains: www.rki.de, zfkd.info, zfkd.de, www.zfkd.info, www.zfkd.de, www.token-studie.de, www.stiko.de, www.stakob.org, www.stakob.de, www.rki.bund.de, www.krebsdaten.rki.de, www.krebsdaten.de, www.karriere.rki.de, www.jobs.rki.de, www.esticom.eu, www.emerge.rki.eu, www.ekos.rki.de, www.effo.rki.de, www.effo-ebola.rki.de, www.diabsurv.rki.de, token-studie.de, stiko.de, stakob.org, stakob.de, rki.de, rki.bund.de, krebsdaten.rki.de, krebsdaten.de, karriere.rki.de, jobs.rki.de, esticom.eu, emerge.rki.eu, ekos.rki.de, effo.rki.de, effo-ebola.rki.de, diabsurv.rki.de

Security headers

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

Compression: none · 1 cookie(s) observed

Content & assets

Headings

H1 4 · H2 10 · H3 13

Links

136 internal · 9 external · 9 broken

Images

8 total · 0 missing alt

Scripts / Styles

1 scripts · 8 stylesheets

JS / CSS size

0 B · 126 B

Page size

205 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 3
sitemap.xml: Found
URLs in sitemap: -1

SEO issues

Multiple H1 headings found

Scan details

Requested URL: https://rki.de
Final URL: https://www.rki.de/DE/Home/home_node.html
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 414 ms
HTML size: 205 KB
Redirect chain: https://rki.de → https://www.rki.de/ → https://www.rki.de/DE/Home/home_node.html

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does rki.de use?: rki.de is built with Apache.
Is rki.de secure (HTTPS)?: Yes. rki.de uses TLS 1.3 with a certificate issued by D-Trust GmbH, valid until Oct 21, 2026.
Who hosts rki.de?: rki.de is hosted on ITZBund - ITZBund, DE.
What is rki.de's SEO score?: rki.de scored 95/100 for SEO in the latest analysis (excellent).
What is rki.de's overall website score?: rki.de has an overall SiteGraph score of 99/100, combining SEO, performance, security, and accessibility.
What company operates rki.de?: rki.de is operated by Robert Koch-Institut. Weitere Informationen zum RKI