What technology does drawio.com use?

We did not detect any specific technologies for drawio.com in the latest scan.

Is drawio.com secure (HTTPS)?

Yes. drawio.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 24, 2026.

Who hosts drawio.com?

Hosting provider information for drawio.com is not available yet.

What is drawio.com's SEO score?

drawio.com scored 90/100 for SEO in the latest analysis (excellent).

What is drawio.com's overall website score?

drawio.com has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.

Has drawio.com's score changed over time?

drawio.com's overall score has declined by 3 points (from 95 to 92) since Jul 26, 2026.

drawio.com

Security-first diagramming for teams | draw.io

Last scanned Aug 3, 2026, 2:00 AM · 5 views

Overall score

Excellent

Summary

Free, open source diagramming application with 100M+ users. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: robots.txt not found.

draw.io

Free, open source diagramming application with 100M+ users. Store your data wherever you want—we can't access it.

Top issues to fix

5 issues found · 1 high priority

Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEO
Fix or remove broken links — they waste crawl budget and erode user trust.

SEO

2 issue(s) found

100

Performance

41 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 26, 2026

Overall: 92
SEO: 90
Security: 80
Performance: 100
Accessibility: 100

Organization

Company details published in this site's own structured data.

draw.io

Free, open source diagramming application with 100M+ users. Store your data wherever you want—we can't access it.

GitHub stackoverflow.com

Meta tags

Title: Security-first diagramming for teams | draw.io
Description: Free, open source diagramming application with 100M+ users. Store your data wherever you want—we can't access it.
Canonical: https://www.drawio.com/
Language: en
Charset: UTF-8
Viewport: width=device-width,initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: www.drawio.com
Valid from: Jul 26, 2026
Valid to: Oct 24, 2026
Days until expiry: 82
SAN domains: www.drawio.com

Security headers

Strict-Transport-SecurityEnabled
Content-Security-PolicyMissing
X-Frame-OptionsMissing
X-Content-Type-OptionsEnabled
Referrer-PolicyEnabled
Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 6

Links

15 internal · 5 external · 20 broken

Images

9 total · 0 missing alt

Scripts / Styles

4 scripts · 2 stylesheets

JS / CSS size

1.7 KB · 0 B

Page size

21.4 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://drawio.com
Final URL: https://www.drawio.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 41 ms
HTML size: 21.4 KB
Redirect chain: https://drawio.com → https://www.drawio.com/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does drawio.com use?: We did not detect any specific technologies for drawio.com in the latest scan.
Is drawio.com secure (HTTPS)?: Yes. drawio.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 24, 2026.
Who hosts drawio.com?: Hosting provider information for drawio.com is not available yet.
What is drawio.com's SEO score?: drawio.com scored 90/100 for SEO in the latest analysis (excellent).
What is drawio.com's overall website score?: drawio.com has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
What company operates drawio.com?: drawio.com is operated by draw.io. Free, open source diagramming application with 100M+ users. Store your data wherever you want—we can't access it.
Has drawio.com's score changed over time?: drawio.com's overall score has declined by 3 points (from 95 to 92) since Jul 26, 2026.