What technology does 4a.si use?

4a.si is built with PHP, Nginx.

Is 4a.si secure (HTTPS)?

Yes. 4a.si uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 10, 2026.

4a.si is hosted on T-2-AS - T-2, d.o.o., SI.

What is 4a.si's SEO score?

4a.si scored 60/100 for SEO in the latest analysis (fair).

What is 4a.si's overall website score?

4a.si has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.

4a.si

Slavic Link Shortener

Last scanned Aug 24, 2026, 1:14 PM · 1 view

Overall score

Fair

Summary

This website uses PHP hosted on T-2-AS - T-2, d.o.o., SI. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.

Hosted on T-2-AS - T-2, d.o.o., SI

Top issues to fix

12 issues found · 3 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.
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.
1 cookie without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

+6 more issues — details in the sections below.

SEO

6 issue(s) found

100

Performance

145 ms

Security

HTTPS & header checks

Accessibility

1 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.

Technologies

Detected frameworks, languages, and tools.

PHP Nginx

Hosting & CDN

Hosting provider: T-2-AS - T-2, d.o.o., SI
CDN provider: —
IP address: 188.230.215.50
ASN: AS34779 (T-2-AS - T-2, d.o.o., SI)

DNS records

Type	Value
A	188.230.215.50
AAAA	2a01:261:e80:4801::1
MX	mail.4a.si
TXT	—
NS	ns2.sijanec.org ns1.sijanec.org
CAA	128 issuewild "letsencrypt.org; validationmethods=dns-01" 128 iodef "mailto:caa-violation@sijanec.eu" 128 issue "letsencrypt.org; validationmethods=dns-01"
CNAME	—
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.3
Issuer: Let's Encrypt
Subject: sijanec.eu
Valid from: Jul 12, 2026
Valid to: Oct 10, 2026
Days until expiry: 46
SAN domains: *.4a.si, *.med.4a.si, *.med.sijanec.eu, *.med.sijanec.net, *.med.sijanec.org, *.med.xn--ijanec-9jb.com, *.med.xn--ijanec-9jb.eu, *.med.xn--ijanec-9jb.net, *.med.xn--ijanec-9jb.org, *.med.xn--ijanec-9jb.si, *.plac.si, *.sijanec.eu, *.sijanec.net, *.sijanec.org, *.srcnik.si, *.xn--ijanec-9jb.com, *.xn--ijanec-9jb.eu, *.xn--ijanec-9jb.net, *.xn--ijanec-9jb.org, *.xn--ijanec-9jb.si, 4a.si, plac.si, sijanec.eu, sijanec.net, sijanec.org, srcnik.si, xn--ijanec-9jb.com, xn--ijanec-9jb.eu, xn--ijanec-9jb.net, xn--ijanec-9jb.org, xn--ijanec-9jb.si

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

3 total · 0 missing alt

Scripts / Styles

2 scripts · 0 stylesheets

JS / CSS size

561 B · 737 B

Page size

3.1 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://4a.si
Final URL: https://4a.si
HTTP status: 200
HTTP version: HTTP/2
Response time: 145 ms
HTML size: 3.1 KB
Redirect chain: https://4a.si

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does 4a.si use?: 4a.si is built with PHP, Nginx.
Is 4a.si secure (HTTPS)?: Yes. 4a.si uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 10, 2026.
Who hosts 4a.si?: 4a.si is hosted on T-2-AS - T-2, d.o.o., SI.
What is 4a.si's SEO score?: 4a.si scored 60/100 for SEO in the latest analysis (fair).
What is 4a.si's overall website score?: 4a.si has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.