cacoo.com
Cacoo | Online diagramming tool for collaborative diagramming | Nulab
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Excellent
Summary
Create diagrams online with a collaborative online diagramming tool. This website uses Google Analytics hosted on AWS behind CloudFront CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
Create diagrams online with a collaborative online diagramming tool. Join the 390,000 users drawing diagrams, flowcharts, and wireframes online with Cacoo.
- United States
- Hosted on AWS
Top issues to fix
3 issues found
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
5 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
2 issue(s) found
Performance
586 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Cacoo | Online diagramming tool for collaborative diagramming | Nulab
- Description
- Create diagrams online with a collaborative online diagramming tool. Join the 390,000 users drawing diagrams, flowcharts, and wireframes online with Cacoo.
- Canonical
- https://nulab.com/cacoo/
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- CloudFront
- IP address
- 18.66.57.34
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Amazon
- Subject
- *.nulab.com
- Valid from
- Nov 16, 2025
- Valid to
- Dec 15, 2026
- Days until expiry
- 112
- SAN domains
- *.nulab.com, nulab.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 5 · H3 16
Links
57 internal · 18 external · 5 broken
Images
23 total · 0 missing alt
Scripts / Styles
32 scripts · 5 stylesheets
JS / CSS size
711 KB · 230 KB
Page size
113 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Title longer than 60 characters
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://cacoo.com
- Final URL
- https://nulab.com/cacoo/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 584 ms
- HTML size
- 113 KB
- Redirect chain
- https://cacoo.com → https://nulab.com/cacoo/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does cacoo.com use?
- cacoo.com is built with Astro, Google Analytics, Meta Pixel.
- Is cacoo.com secure (HTTPS)?
- Yes. cacoo.com uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 15, 2026.
- Who hosts cacoo.com?
- cacoo.com is hosted on AWS, behind CloudFront CDN.
- What is cacoo.com's SEO score?
- cacoo.com scored 85/100 for SEO in the latest analysis (great).
- What is cacoo.com's overall website score?
- cacoo.com has an overall SiteGraph score of 96/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card