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spectrum.chat

https://spectrum.chat· First analyzed 15 May 2026· Updated 15 May 2026
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spectrum.chat
Desktop screenshot of spectrum.chat
Mobile screenshot of spectrum.chat
Mobile

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Hosting Provider

GitHub Pages
pages.github.com

IP Address

140.82.113.17

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS36459

Organization

GitHub, Inc.

Server

github.com

Nameservers

dns2.p01.nsone.net.dns3.p01.nsone.net.dns4.p01.nsone.net.dns1.p01.nsone.net.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
552 ms10%
Speed Index
718 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
59 KB
111 requests

Image Optimization

WebPResponsive
0–49
50–89
90–100

Architecture Stack

Headless
⚙️ SSR
Decoupled
Frontend
Styling
Tailwind CSS
API
Data Source
Headless CMS
Contentful
Infrastructure
Platform
GitHub Pages

Progressive Web App

Web ManifestTheme Color

Detected API Sources

//images.ctfassets.net/8aevphv...//images.ctfassets.net/8aevphv...

Technology Stack

1 Technologies Detected

CSS Frameworks

1
Tailwind CSS

SEO Analysis

C69/100
22
4
1
Meta Tags9/15
Content8/12
Headings6/8
Technical17/25
E-E-A-T0/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
S
spectrum.chatspectrum.chat

GitHub Discussions · Developer Collaboration & Communication Tool ·...

GitHub is where people build software. More than 150 million people use GitHub to discover, fork, and contribute to over 420 million projects.

Title truncated.
Title Length74 chars

Recommended: 50-60 chars (~445px / 580px)

Description Length142 chars

Recommended: 120-160 chars

Issues (1)

  • • Title is too long (74 chars, ~445px). Will be truncated in search results.

5 issues found

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Crawlability

Sitemap
robots.txt

89 rules

Local SEO

Local Search Readiness

14/100
Poor
4 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

D49/100
Bot Access
20/25
Machine Read.
15/25
Schema Data
0/25
Citation
14/25

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.txtvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
nav
Text ratio:2%
Words:734
Token eff.:Optimal
Sections/1K:1.4
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary149w
Descriptive Headingsavg 5.5w
Canonical URL
Open Graph3/3
Twitter Card3/3
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.
A
89/100
15
Passed
3
Critical
0
Warnings
Images & Alt Text
18/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
15/20
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
15/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
11/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

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.
67/100
A+
7 mg
CO₂e / view
59.3 KB
Page Weight
95%
Cleaner Than
New Visitor
8 mg
vs
Returning (cached)
4 mg
Annual (10K/mo)
876 g
Emission Segments
Data Center
2 mg
Network
2 mg
Device
4 mg
Resource Breakdown
Images
2.5 KB
HTML
56.9 KB
Green Hosting Not Verified
GitHub Pages
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
C

Security Score

65%Fair
Critical / Transactional

HTTPS

No WAF

79d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Sectigo Limited

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

05.05.2026

Valid Until

02.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

github.comwww.github.com

SHA-256 Fingerprint

A7:B8:10:34:CD:43:95:51:C5:0A:29:B5:43:55:25:4A:84:94:2A:0A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges
bytes
cache-control
🟡 0s(max-age=0, private, must-revalidate)
content-encoding
📦 Gzip(gzip)
content-language
en-US
content-security-policy
default-src 'none'; base-uri 'self'; child-src github.github...
content-type
text/html; charset=utf-8
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

55

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

Domain Information

spectrum.chat

Domain Age
9y 3m

Created

25.01.2017

Expires

25.01.2027

Last Updated

29.12.2024

Registrar

MarkMonitor Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Cookie consent banner detected
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
60/100
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=device-width
3 recommendations
  • •Mobile compatibility recommendation preview...
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Typography & Readability

Times New Roman

WCAG AAA
76/100
Readability
/30
22/30

16px · LH --

Hierarchy
/20
17/20

2x ratio

WCAG
/25
24/25

9.4:1 min contrast

Performance
/25
13/25

1 font · 1 req

Heading Font

Times New Roman

Serif32px

Body Font

Times New Roman

Serif16px

Contrast Ratio

9.4:1

WCAG AAA (≥7:1)

Reading Comfort

~38 CPL

Narrow lines
32px
h1
24px
h2
19px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Hard to read: Flesch score 41/100. Simplify sentences for wider reach.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 9.4:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

✅ Strong hierarchy: Headlines are 2.0x larger than body text.

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

Buy on MyFontsFlesch 41

Color Palette

7 unique colors
Light
#ffffff
Background· 91.9%
#9699cc
Secondary· 2.2%
#1e2327
Primary· 0%
#c9c8dd
Secondary· 1.8%
#a7aad4
Secondary· 1.5%
#dddde9
Secondary· 1%
#edeff3
Secondary· 1%
#7d7bb0
Secondary· 0.8%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

30 Resources

20
Scripts
10
Styles
0
Async
19
Defer

Top Script Sources

github.githubassets.com(20)

Website Identity

spectrum.chat

9 years old
Location detected: 🇺🇸 United Statesvia ip
MarkMonitor Inc.en

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Last analyzed: 15 May 2026 at 14:12

Historical Analysis & Change Tracking