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draw.io

https://draw.io· First analyzed 22 Apr 2026· Updated 22 Apr 2026
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draw.io
Desktop screenshot of draw.io
Mobile screenshot of draw.io
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.18.8.17

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

phil.ns.cloudflare.com.amy.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
306 ms10%
Speed Index
398 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
10.3 MB
29 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
BigCommerce

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

3 Technologies Detected

Other

1
Pusher

CSS Frameworks

1
Bootstrap

CDN

1
Cloudflare

SEO Analysis

D47/100
13
11
1
Meta Tags9/15
Content9/12
Headings6/8
Technical12/21
E-E-A-T0/7
Images1/7
Links1/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
D
draw.iodraw.io

Untitled Diagram - draw.io

draw.io is free online diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams

Title Length26 chars

Recommended: 50-60 chars (~155px / 580px)

Description Length121 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (12/12) — critical for accessibility and SEO

12 issues found

Upgrade to view details

Local SEO

Local Search Readiness

1/100
Poor
16 2

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

Sponsored

AI & LLM Readiness

F33/100
Bot Access
20/25
Machine Read.
10/25
Schema Data
0/25
Citation
3/25

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:3%
Words:1,947
Token eff.:Optimal

Structured Data

No Schema

Citation Readiness

Opening Summary19w
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 (12)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

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.
D
49/100
7
Passed
6
Critical
1
Warnings
Images & Alt Text
5/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
13/15
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.
4 recommendations
  • •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.
33/100
F
1.06 g
CO₂e / view
10.3 MB
Page Weight
5%
Cleaner Than
New Visitor
1.21 g
vs
Returning (cached)
607 mg
Annual (10K/mo)
127.6 kg
Emission Segments
Data Center
52 mg
Network
312 mg
Device
699 mg
Resource Breakdown
JavaScript
10.2 MB
Images
4.9 KB
CSS
17.8 KB
HTML
1.5 KB
Other
21.4 KB
Green Hosting Verified
Cloudflare
GWF Verified
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Interactive

HTTPS

WAF

76d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-384

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.04.2026

Valid Until

08.07.2026

Subject Alternative Names (2)

*.diagrams.netdiagrams.net

SHA-256 Fingerprint

6E:3D:32:CE:FB:90:39:C4:BE:A0:D2:01:3D:14:37:42:78:D2:21:57...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

access-control-allow-origin
*
age
464
cache-control
🟡 600s(public, max-age=600)
cf-cache-status
DYNAMIC
cf-ray🇩🇪 Frankfurt
9f06cae9da965d7d-FRA
content-encoding
📦 Gzip(gzip)
Good Warning Issue

Email Infrastructure

Fastmail

Score

73

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (2)

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

Domain Information

draw.io

Domain Age
13y 9m

Created

12.07.2012

Expires

12.07.2031

Last Updated

06.12.2021

Registrar

Cloudflare, 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.
C
65/100
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, maximum-scale=1.0, user-scalable=no
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica

WCAG AA
71/100
Readability
/30
14/30

12px · LH 1.20

Hierarchy
/20
18/20

2x ratio · ✓ H1→H6

WCAG
/25
19/25

5.23:1 min contrast

Performance
/25
20/25

System fonts

Heading Font

Helvetica

Sans24px

Body Font

Helvetica

Sans12px

Contrast Ratio

5.23:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Font Family

left aligned
24px
h1
12px
p

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

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

❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 5.2:1).

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

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

Buy on MyFontsFlesch 25

Color Palette

3 unique colors
Light
#ffffff
Background· 11.4%
#d89000
Primary· 0%

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

22 Resources

19
Scripts
3
Styles
1
Async
9
Defer

Top Script Sources

js(8)app.diagrams.net(5)apis.google.com(2)math4(2)dropbox.com(1)

Website Identity

draw.io

13 years old
Location detected: 🇨🇦 Canadavia ip
Cloudflare, Inc📧 Fastmail

Social Profiles

GitHub

Sponsored

Last analyzed: 22 Apr 2026 at 18:46

Historical Analysis & Change Tracking