esolangs.org

https://esolangs.org· First analyzed 15 May 2026· Updated 15 May 2026

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esolangs.org

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Hosting Provider

Bytemark Computer Consulting Ltd

IP Address

46.43.2.108

Site Location

🇬🇧 United Kingdomvia ip

Server Location

🇬🇧 York, United Kingdom

ASN

AS35425

Organization

Bytemark Computer Consulting Ltd

Server

Nginx

Nameservers

ns2.1984hosting.com.selene.zem.fi.ns0.1984.is.ns1.1984.is.+2 more

Performance

100

Core Web Vitals

Weight

First Contentful Paint

615 ms10%

Speed Index

800 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

386 KB

12 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Bytemark Computer Consulting Ltd

Technology Stack

3 Technologies Detected

Frameworks

Alpine.js

CSS Frameworks

Tailwind CSS

Web Servers

Nginxv1.22.1

SEO Analysis

C66/100

Meta Tags9/15

Content11/12

Headings6/8

Technical17/25

E-E-A-T0/7

Images6/7

Links5/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

esolangs.orgesolangs.org

Esolang, the esoteric programming languages wiki

No description available for this page.

Title Length48 chars

Recommended: 50-60 chars (~290px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

• Missing meta description — important for click-through rates in SERPs

7 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

6 rules

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

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AI & LLM Readiness

D43/100

Bot Access

20/25

Machine Read.

12/25

Schema Data

0/25

Citation

11/25

AI Bot Access

14/14 accessible

AI Search

OAI-SearchBot

PerplexityBot

Claude-SearchBot

Gemini-Deep-Research

DuckAssistBot

Training

GPTBot

ClaudeBot

Google-Extended

Meta-ExternalAgent

Bytespiderinfo

Amazonbot

Applebot-Extended

CCBotinfo

Fetch

ChatGPT-User

data-nosnippet

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

nav

Text ratio:13%

Words:506

Token eff.:Optimal

Sections/1K:21.7

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary24w

Descriptive Headingsavg 1.5w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.

84/100

Passed

Critical

Warnings

Images & Alt Text

20/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

18/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

15/15

Verifies form fields have labels, error messages are clear, and inputs are properly associated.

Color & Contrast

15/15

Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.

Keyboard & Focus

9/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

7/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

1 recommendation

•Accessibility recommendation preview...

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Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.

86/100

A+

39 mg

CO₂e / view

386.2 KB

Page Weight

90%

Cleaner Than

New Visitor

45 mg

Returning (cached)

22 mg

Annual (10K/mo)

4.7 kg

Emission Segments

Data Center

2 mg

Network

12 mg

Device

26 mg

Resource Breakdown

JavaScript

303.2 KB

Images

33.4 KB

CSS

1.5 KB

HTML

7.7 KB

Other

40.3 KB

Green Hosting Verified

iomart Group PLC

GWF Verified

1 recommendation

•Carbon footprint recommendation preview...

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Security Score

31%Critical

Interactive

HTTPS

No WAF

81d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

07.05.2026

Valid Until

05.08.2026

Subject Alternative Names (4)

esolangs.orghack.esolangs.orglogs.esolangs.orgwww.esolangs.org

SHA-256 Fingerprint

CC:FF:15:01:5A:31:E0:61:6A:12:F6:96:F2:F0:F5:E5:35:9A:87:D4...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 0s(private, must-revalidate, max-age=0)

connection

keep-alive

content-encoding

📦 Gzip(gzip)

content-language

content-type

text/html; charset=UTF-8

date

Fri, 15 May 2026 00:16:50 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

selene.zem.fi

Domain Information

esolangs.org

Domain Age

20y 12m

Created

24.05.2005

Expires

24.05.2027

Last Updated

29.03.2026

Registrar

Tucows Domains Inc.

DNSSEC

Not Enabled

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.

56/100

Mobile Friendly1 breakpoint

Viewport Meta

The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.

Responsive Design

Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.

Touch Icons

Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.

Readable Font Size

Base font size should be at least 16px on mobile to ensure text is readable without zooming.

Relative Units

Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.

No H-Scroll Risk

No elements wider than the viewport that would cause horizontal scrolling on mobile devices.

Tap Targets OK

Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.

No Fixed Widths

No elements with fixed pixel widths that could overflow on smaller screens and break the layout.

Viewport

width=1000

1 recommendation

•Mobile compatibility recommendation preview...

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Typography & Readability

Linux Libertine + sans-serif

WCAG AAA

69/100

Readability

/30

18/30

14px · LH 1.60

Hierarchy

/20

14/20

1.75x ratio · ✓ H1→H6

WCAG

/25

23/25

8.53:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Linux Libertine

Sans25px

Body Font

sans-serif

Sans14px

Contrast Ratio

8.53:1

WCAG AAA (≥7:1)

Reading Comfort

Dual Sans-Serif

left aligned

25px

24px

20px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 8.5:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Lean font stack: 1 font families keeps load times fast.

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 55

Color Palette

6 unique colors

2.96:1 Fail Light

#ffffff

Background· 72.10000000000001%

#929798

Other· 4.9%

#edf3eb

Primary· 10.3%

#cfddcb

Secondary· 5%

#feffdc

Accent· 1.5%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

3 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(1)

Website Identity

esolangs.org

20 years old

Location detected: 🇬🇧 United Kingdomvia ip

Tucows Domains Inc.en

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Last analyzed: 15 May 2026 at 00:17

Historical Analysis & Change Tracking