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gleam.run

https://gleam.run· First analyzed 20 May 2026· Updated 20 May 2026
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gleam.run
Desktop screenshot of gleam.run
Mobile screenshot of gleam.run
Mobile

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Hosting Provider

GitHub Pages
pages.github.com

IP Address

185.199.108.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

GitHub, Inc

Server

GitHub.com

CDN

Fastly

Nameservers

hans.ns.cloudflare.com.leia.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
446 ms10%
Speed Index
580 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
139 KB
22 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
GitHub Pages
CDN
Fastly

Technology Stack

3 Technologies Detected

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Analytics

1
Plausible Analytics

SEO Analysis

D55/100
15
9
1
Meta Tags8/15
Content10/12
Headings3/8
Technical9/21
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
G
gleam.rungleam.run

Gleam programming language

Discover a friendly language for scalable, type-safe systems. Gleam comes with compiler, build tool, formatter, editor integrations, and package manager all ...

Description truncated.
Title Length26 chars

Recommended: 50-60 chars (~165px / 580px)

Description Length166 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

10 issues found

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Local SEO

Local Search Readiness

0/100
Poor
15 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

D40/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
10/25

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
code blocksnav
Text ratio:2%
Words:623
Token eff.:Optimal
Sections/1K:14.4
Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary28w
Descriptive Headingsavg 2.8w
Canonical URL
Open Graph3/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
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.
C
65/100
8
Passed
5
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
10/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
10/15
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
7/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
3/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
4 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.
65/100
A+
17 mg
CO₂e / view
139.4 KB
Page Weight
95%
Cleaner Than
New Visitor
20 mg
vs
Returning (cached)
10 mg
Annual (10K/mo)
2.1 kg
Emission Segments
Data Center
4 mg
Network
4 mg
Device
9 mg
Resource Breakdown
JavaScript
722 B
Images
20.5 KB
CSS
98.4 KB
HTML
19.8 KB
Green Hosting Not Verified
GitHub Pages
4 recommendations
  • •Carbon footprint recommendation preview...
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F

Security Score

36%Critical
Interactive

HTTPS

No WAF

47d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

08.04.2026

Valid Until

07.07.2026

Subject Alternative Names (1)

gleam.run

SHA-256 Fingerprint

1F:C0:DB:78:D1:5A:82:9A:EF:46:50:A2:E8:82:A4:C4:FA:1F:E5:DB...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
access-control-allow-origin
*
age
0
cache-control
🟡 600s(max-age=600)
content-encoding
📦 Gzip(gzip)
content-length
19940
Good Warning Issue

Email Infrastructure

Migadu

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

aspmx2.migadu.com
aspmx1.migadu.com

Domain Information

gleam.run

Domain Age
7y 2m

Created

28.02.2019

Expires

28.02.2027

Last Updated

03.02.2026

Registrar

Cloudflare, Inc

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
68/100
Mobile Friendly17 breakpoints
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=device-width
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Lexend + Outfit

WCAG Partial
61/100
Readability
/30
23/30

22px · LH 1.30

Hierarchy
/20
6/20
WCAG
/25
16/25

1.05:1 min contrast

Performance
/25
16/25

2 fonts · 5 req

Heading Font

Lexend

Sans

Body Font

Outfit

Sans22px

Contrast Ratio

1.05:1

40 issues

Reading Comfort

~38 CPL

Narrow lines
48px
h2
24px
h3
22px
p

✅ Excellent readability: 22px body text is ideal for all devices.

⚠️ Tight line spacing (1.30). Increase to 1.4–1.6 for better readability.

⚠️ Partial contrast: 40 elements below WCAG AA threshold (min 1.1:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

✅ Lean font stack: 2 font families keeps load times fast.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFonts

Color Palette

6 unique colors
Light
#807a84
Other· 3.4%
#fffbe8
Primary· 59%
#2a2d3e
Secondary· 29.700000000000003%
#eeb2e6
Accent· 3.4%
#e9e7d8
Secondary· 2.5%
#1e202b
Secondary· 2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
PlausibleSMB
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

5 Resources

4
Scripts
1
Styles
4
Async
2
Defer

Top Script Sources

gstatic.com(1)plausible.io(1)local(1)google.com(1)

Website Identity

gleam.run

7 years old
Location detected: 🇺🇸 United Statesvia ip
Cloudflare, Inc📧 Migadu

Social Profiles

GitHubDiscord

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Last analyzed: 20 May 2026 at 22:14

Historical Analysis & Change Tracking