m5stack.com
M5Stack | Modular IoT Dev Kits for Rapid Prototyping
Last scanned Jul 26, 2026, 5:17 AM · 1 view
Overall score
Fair
Summary
Open-source modular toolkits for IoT devices based on ESP32-updated version of ESP8266. This website uses Express hosted on Azure. SEO is good (75/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
M5stack
Open-source modular toolkits for IoT devices based on ESP32-updated version of ESP8266. With stackable modules, user-friendly IDE, enabling rapid and high-quality prototyping, STEM education, engineering and mechanical use.
- United States
- Hosted on Azure
Top issues to fix
9 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
+3 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
126 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
M5stack
Open-source modular toolkits for IoT devices based on ESP32-updated version of ESP8266. With stackable modules, user-friendly IDE, enabling rapid and high-quality prototyping, STEM education, engineering and mechanical use.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- M5Stack | Modular IoT Dev Kits for Rapid Prototyping
- Description
- M5Stack empowers developers, educators, and businesses with modular hardware, open-source software, and scalable IoT development platforms for rapid prototyping and deployment.
- Canonical
- https://m5stack.com/
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Azure
- CDN provider
- —
- IP address
- 13.76.210.48
- ASN
- AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- DigiCert Inc
- Subject
- *.m5stack.com
- Valid from
- Feb 1, 2026
- Valid to
- Mar 2, 2027
- Days until expiry
- 219
- SAN domains
- *.m5stack.com, m5stack.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 4 · H3 0
Links
16 internal · 97 external · 0 broken
Images
100 total · 78 missing alt
Scripts / Styles
18 scripts · 1 stylesheets
JS / CSS size
296 KB · 261 KB
Page size
95.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- No H1 heading found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
Scan details
- Requested URL
- https://m5stack.com
- Final URL
- https://m5stack.com
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 125 ms
- HTML size
- 95.5 KB
- Redirect chain
- https://m5stack.com
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Frequently asked questions
- What technology does m5stack.com use?
- m5stack.com is built with Express, Node.js, Shopify, jQuery, Google Analytics, Nginx.
- Is m5stack.com secure (HTTPS)?
- Yes. m5stack.com uses TLS 1.2 with a certificate issued by DigiCert Inc, valid until Mar 2, 2027.
- Who hosts m5stack.com?
- m5stack.com is hosted on Azure.
- What is m5stack.com's SEO score?
- m5stack.com scored 75/100 for SEO in the latest analysis (fair).
- What is m5stack.com's overall website score?
- m5stack.com has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
- What company operates m5stack.com?
- m5stack.com is operated by M5stack. Open-source modular toolkits for IoT devices based on ESP32-updated version of ESP8266. With stackable modules, user-friendly IDE, enabling rapid and high-quality prototyping, STEM education, engineering and mechanical use.
OpenGraph & Twitter Card
OpenGraph
Twitter Card