learnyousomeerlang.com

https://learnyousomeerlang.com· First analyzed 16 May 2026· Updated 16 May 2026

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Mobile

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Hosting Provider

NearlyFreeSpeech.NET

IP Address

208.94.116.42

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 Boston, United States

ASN

AS40630

Organization

NearlyFreeSpeech.NET

Server

Apache

Nameservers

ns.phx6.nearlyfreespeech.net.ns.phx3.nearlyfreespeech.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

427 ms10%

Speed Index

555 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

154 KB

7 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

NearlyFreeSpeech.NET

Technology Stack

1 Technologies Detected

Web Servers

Apache

SEO Analysis

D43/100

Meta Tags10/15

Content5/12

Headings0/8

Technical10/25

E-E-A-T0/7

Images4/7

Links2/5

URL5/5

Social0/5

Freshness0/4

Mobile4/4

Indexability3/3

learnyousomeerlang.comlearnyousomeerlang.com

Learn You Some Erlang for Great Good!

Learn you some Erlang for great good! An Erlang tutorial for beginners and others too.

Title Length37 chars

Recommended: 50-60 chars (~233px / 580px)

Description Length86 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

11 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

5/100

Poor

2 13 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

F29/100

Bot Access

20/25

Machine Read.

4/25

Schema Data

0/25

Citation

5/25

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

Machine Readability

llms.txt

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:27%

Words:162

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary52w

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

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.

66/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

6/20

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

1/15

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

2 recommendations

•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.

61/100

A+

19 mg

CO₂e / view

153.8 KB

Page Weight

95%

Cleaner Than

New Visitor

22 mg

Returning (cached)

11 mg

Annual (10K/mo)

2.3 kg

Emission Segments

Data Center

4 mg

Network

5 mg

Device

10 mg

Resource Breakdown

Images

141.8 KB

CSS

10.4 KB

HTML

1.6 KB

Green Hosting Not Verified

NearlyFreeSpeech.NET

3 recommendations

•Carbon footprint recommendation preview...

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Security Score

71%Good

Static / Informational

HTTPS

No WAF

70d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp384r1) (384 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

26.04.2026

Valid Until

25.07.2026

Subject Alternative Names (1)

learnyousomeerlang.com

SHA-256 Fingerprint

7F:A5:35:5A:66:1C:54:EF:37:48:F5:66:C4:B3:33:7E:4B:21:C9:19...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🟡 1 Hours(max-age=3600, private, must-revalidate)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Sat, 16 May 2026 02:06:44 GMT

expires

Sat, 16 May 2026 03:06:44 GMT

server

Apache

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

learnyousomeerlang.com

Domain Age

16y 9m

Created

24.07.2009

Expires

24.07.2026

Last Updated

24.06.2025

Registrar

NameCheap, 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.

37/100

Not Mobile Friendly

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.

4 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman + arial

WCAG Fail

64/100

Readability

/30

20/30

14px · LH 1.20

Hierarchy

/20

10/20

WCAG

/25

14/25

1.11:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

Times New Roman

Body Font

arial

Sans14px

Contrast Ratio

1.11:1

11 issues

Reading Comfort

~46 CPL

Optimal (45–75)

14px

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

⚠️ Tight line spacing (1.20). Increase to 1.4–1.6 for better readability.

✅ Optimal line length: ~46 chars/line (ideal 45–75 CPL).

✅ Easy to read: Flesch score 76/100 — accessible to general audiences.

❌ Low contrast: 11 elements fail WCAG AA (min 1.1:1). Increase text/background contrast.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Flesch 76

Color Palette

9 unique colors

7.94:1 AAA Dark

#515151

Other· 36.400000000000006%

#ffffff

Text· 10.2%

#1f1f30

Primary· 3.4%

#e2dcd8

Secondary· 1.9%

#a53071

Accent· 1.4%

#668894

Secondary· 1%

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Scripts & Styles

1 Resources

Scripts

Styles

Async

Defer

Top Script Sources

Website Identity

learnyousomeerlang.com

mononcqc+lyse@ferd.ca

16 years old

Location detected: 🇺🇸 United Statesvia ip

NameCheap, Inc.en

Social Profiles

X (Twitter)

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Last analyzed: 16 May 2026 at 02:07

Historical Analysis & Change Tracking