Is rzk.com secure (HTTPS)?

Yes. rzk.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 23, 2026.

rzk.com is hosted on ARTFILES-AS - Artfiles New Media GmbH, DE.

What is rzk.com's SEO score?

rzk.com scored 60/100 for SEO in the latest analysis (fair).

What is rzk.com's overall website score?

rzk.com has an overall SiteGraph score of 70/100, combining SEO, performance, security, and accessibility.

rzk.com

RzK GmbH

Last scanned Jul 22, 2026, 9:09 PM · 2 views

Overall score

Fair

Summary

This website uses Apache hosted on ARTFILES-AS - Artfiles New Media GmbH, DE. SEO is fair (60/100) and accessibility is fair (55/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

Germany

Hosted on ARTFILES-AS - Artfiles New Media GmbH, DE

Top issues to fix

13 issues found · 5 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 meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
Over half of images are missing alt text
Accessibility
Add alt attributes to images — screen readers depend on them, and they help image SEO.
Missing viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

+7 more issues — details in the sections below.

SEO

6 issue(s) found

100

Performance

266 ms

Security

HTTPS & header checks

Accessibility

3 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.

Contact

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

Email: info@rzk.com

Technologies

Detected frameworks, languages, and tools.

Apache

Hosting & CDN

Hosting provider: ARTFILES-AS - Artfiles New Media GmbH, DE
CDN provider: —
IP address: 212.53.189.248
ASN: AS8893 (ARTFILES-AS - Artfiles New Media GmbH, DE)

DNS records

Type	Value
A	212.53.189.248
AAAA	2a00:1f78:cd:6::443
MX	mailin200.dcpserver.de
TXT	google-site-verification=FEFzSccYHpha2jvrM6HMdy8D058hpbLLegv-OjcuRbE v=spf1 ip4:217.144.139.48/28 ip4:80.152.230.140/32 include:set1.spf-ispsuite.portunity.de include:spf.dcpserver.de -all
NS	ns2.portunity.de ns.portunity.de
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: rzk.com
Valid from: May 25, 2026
Valid to: Aug 23, 2026
Days until expiry: 31
SAN domains: rzk.com, www.rzk.com

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 7 · H3 19

Links

0 internal · 0 external · 0 broken

Images

2 total · 2 missing alt

Scripts / Styles

0 scripts · 0 stylesheets

JS / CSS size

0 B · 291 B

Page size

23.6 KB

Robots.txt & Sitemap

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

SEO issues

Missing meta description
Missing canonical link
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://rzk.com
Final URL: https://rzk.com
HTTP status: 200
HTTP version: HTTP/2
Response time: 266 ms
HTML size: 23.6 KB
Redirect chain: https://rzk.com

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