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cyrusimap.org

https://cyrusimap.org· First analyzed 14 May 2026· Updated 14 May 2026
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cyrusimap.org
Desktop screenshot of cyrusimap.org
Mobile screenshot of cyrusimap.org
Mobile

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Hosting Provider

GitHub Pages
pages.github.com

IP Address

185.199.111.153

Site Location

🇺🇸 United Statesvia ip

Server Location

🇺🇸 San Francisco, United States

ASN

AS54113

Organization

GitHub, Inc

Server

GitHub.com

CDN

Fastly

Nameservers

ns2.messagingengine.com.ns1.messagingengine.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
591 ms10%
Speed Index
768 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
675 KB
16 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Platform
GitHub Pages
CDN
Fastly

Technology Stack

4 Technologies Detected

Libraries

2
jQuery
Underscore.js

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

SEO Analysis

C63/100
17
7
1
Meta Tags10/15
Content11/12
Headings6/8
Technical16/25
E-E-A-T3/7
Images0/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
C
cyrusimap.orgcyrusimap.org

What is Cyrus IMAP? — Cyrus IMAP 3.12.2 documentation

No description available for this page.

Title Length53 chars

Recommended: 50-60 chars (~324px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (1)

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

8 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

486 URLs

robots.txt

Local SEO

Local Search Readiness

6/100
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

F39/100
Bot Access
20/25
Machine Read.
14/25
Schema Data
1/25
Citation
4/25

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:17%
Words:609
Token eff.:Optimal
Sections/1K:1.6
Depth:2/5

Structured Data

Microdata
Article×1.2(min)microdata

Citation Readiness

Opening Summary15w
Descriptive Headingsavg 1w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
Upgrade to view recommendations

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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
82/100
12
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
16/20
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...
Upgrade to view recommendations

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.
51/100
B
84 mg
CO₂e / view
675.4 KB
Page Weight
80%
Cleaner Than
New Visitor
96 mg
vs
Returning (cached)
48 mg
Annual (10K/mo)
10.0 kg
Emission Segments
Data Center
19 mg
Network
20 mg
Device
45 mg
Resource Breakdown
JavaScript
114.2 KB
CSS
555.8 KB
HTML
5.3 KB
Green Hosting Not Verified
GitHub Pages
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

70d

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

24.04.2026

Valid Until

23.07.2026

Subject Alternative Names (2)

cyrusimap.orgwww.cyrusimap.org

SHA-256 Fingerprint

2A:16:CC:BE:98:FC:4C:6F:73:7A:0E:2C:A3:B3:71:E4:E7:15:68:72...

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
5171
Good Warning Issue

Email Infrastructure

Fastmail

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (2)

in1-smtp.messagingengine.com
in2-smtp.messagingengine.com

Domain Information

cyrusimap.org

Domain Age
22y 3m

Created

18.02.2004

Expires

18.02.2027

Last Updated

25.12.2025

Registrar

Gandi SAS

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.
D
59/100
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, initial-scale=1.0
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Roboto Slab + Lato

WCAG Partial
63/100
Readability
/30
20/30

16px · LH 1.50

Hierarchy
/20
15/20

1.75x ratio

WCAG
/25
17/25

4.19:1 min contrast

Performance
/25
11/25

2 fonts · 4 req

Heading Font

Roboto Slab

Sans28px

Body Font

Lato

Sans16px

Contrast Ratio

4.19:1

3 issues

Reading Comfort

~36 CPL

Narrow lines
28px
h1
24px
h2
16px
p

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

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

❌ Very complex text: Flesch score 19/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 3 elements below WCAG AA threshold (min 4.2:1).

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

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

Buy on MyFontsFlesch 19

Color Palette

5 unique colors
12.48:1 AAA Light
#fcfcfc
Background· 56.199999999999996%
#333230
Other· 19.200000000000003%
#4e758f
Primary· 4.3%

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

11 Resources

7
Scripts
4
Styles
0
Async
0
Defer

Top Script Sources

_static(7)

Website Identity

cyrusimap.org

22 years old
Location detected: 🇺🇸 United Statesvia ip
Gandi SAS📧 Fastmailen

Social Profiles

GitHub

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Last analyzed: 14 May 2026 at 10:55

Historical Analysis & Change Tracking