What technology does rcode0.net use?

rcode0.net is built with Laravel, Tailwind CSS, Google Analytics, Nginx.

Is rcode0.net secure (HTTPS)?

Yes. rcode0.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 28, 2026.

Who hosts rcode0.net?

rcode0.net is hosted on UniVie - Vienna University, AT.

What is rcode0.net's SEO score?

rcode0.net scored 55/100 for SEO in the latest analysis (fair).

What is rcode0.net's overall website score?

rcode0.net has an overall SiteGraph score of 67/100, combining SEO, performance, security, and accessibility.

rcode0.net

RcodeZero

Last scanned Jul 26, 2026, 5:17 AM · 1 view

Overall score

Fair

Summary

This website uses Nginx hosted on UniVie - Vienna University, AT. SEO is fair (55/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Missing meta description.

Austria

Hosted on UniVie - Vienna University, AT

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.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
Accessibility
Add alt attributes to images — screen readers depend on them, and they help image SEO.
TLS certificate expires in 30 days
Security
Renew soon or enable auto-renewal to avoid a browser-warning outage.

+7 more issues — details in the sections below.

SEO

6 issue(s) found

Performance

467 ms

Security

HTTPS & header checks

Accessibility

2 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.

Facebook YouTube LinkedIn

Contact

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

Email: rcodezero@ipcom.at

Technologies

Detected frameworks, languages, and tools.

Laravel Tailwind CSS Google Analytics Nginx

Hosting & CDN

Hosting provider: UniVie - Vienna University, AT
CDN provider: —
IP address: 131.130.249.235
ASN: AS760 (UniVie - Vienna University, AT)

DNS records

Type	Value
A	131.130.249.235
AAAA	2001:62a:4:100::235
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: rcodezero.at
Valid from: May 30, 2026
Valid to: Aug 28, 2026
Days until expiry: 30
SAN domains: rcodezero.at, www.rcodezero.at

Security headers

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

Compression: none · 3 cookie(s) observed

Content & assets

Headings

H1 0 · H2 6 · H3 12

Links

28 internal · 7 external · 0 broken

Images

21 total · 16 missing alt

Scripts / Styles

14 scripts · 3 stylesheets

JS / CSS size

355 KB · 278 KB

Page size

356 KB

Robots.txt & Sitemap

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

SEO issues

Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
sitemap.xml not found

Scan details

Requested URL: https://rcode0.net
Final URL: https://www.rcodezero.at/
HTTP status: 200
HTTP version: HTTP/2
Response time: 460 ms
HTML size: 356 KB
Redirect chain: https://rcode0.net → https://www.rcodezero.at/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does rcode0.net use?: rcode0.net is built with Laravel, Tailwind CSS, Google Analytics, Nginx.
Is rcode0.net secure (HTTPS)?: Yes. rcode0.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 28, 2026.
Who hosts rcode0.net?: rcode0.net is hosted on UniVie - Vienna University, AT.
What is rcode0.net's SEO score?: rcode0.net scored 55/100 for SEO in the latest analysis (fair).
What is rcode0.net's overall website score?: rcode0.net has an overall SiteGraph score of 67/100, combining SEO, performance, security, and accessibility.