What technology does esolangs.org use?

esolangs.org is built with Nginx.

Is esolangs.org secure (HTTPS)?

Yes. esolangs.org uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Oct 5, 2026.

Who hosts esolangs.org?

Hosting provider information for esolangs.org is not available yet.

What is esolangs.org's SEO score?

esolangs.org scored 60/100 for SEO in the latest analysis (fair).

What is esolangs.org's overall website score?

esolangs.org has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.

esolangs.org

Esolang, the esoteric programming languages wiki

Last scanned Jul 26, 2026, 11:49 AM

Overall score

Great

Summary

This website uses Nginx. SEO is fair (60/100) and accessibility is excellent (100/100). Security scores fair (70/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

10 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-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
Multiple H1 headings found
SEO
Keep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

+4 more issues — details in the sections below.

SEO

6 issue(s) found

100

Performance

508 ms

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.

Technologies

Detected frameworks, languages, and tools.

Nginx

Hosting & CDN

Hosting provider: —
CDN provider: —
IP address: —
ASN: —

DNS records

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

TLS / SSL certificate

Version: TLS 1.2
Issuer: Let's Encrypt
Subject: esolangs.org
Valid from: Jul 7, 2026
Valid to: Oct 5, 2026
Days until expiry: 68
SAN domains: esolangs.org, hack.esolangs.org, logs.esolangs.org, www.esolangs.org

Security headers

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

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 2 · H2 5 · H3 6

Links

39 internal · 3 external · 20 broken

Images

3 total · 0 missing alt

Scripts / Styles

4 scripts · 2 stylesheets

JS / CSS size

2.6 KB · 0 B

Page size

22.3 KB

Robots.txt & Sitemap

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

SEO issues

Missing meta description
Multiple H1 headings found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://esolangs.org
Final URL: https://esolangs.org/wiki/Main_Page
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 508 ms
HTML size: 22.3 KB
Redirect chain: https://esolangs.org → https://esolangs.org/wiki/Main_Page

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does esolangs.org use?: esolangs.org is built with Nginx.
Is esolangs.org secure (HTTPS)?: Yes. esolangs.org uses TLS 1.2 with a certificate issued by Let's Encrypt, valid until Oct 5, 2026.
Who hosts esolangs.org?: Hosting provider information for esolangs.org is not available yet.
What is esolangs.org's SEO score?: esolangs.org scored 60/100 for SEO in the latest analysis (fair).
What is esolangs.org's overall website score?: esolangs.org has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.