platformio.org
Your Gateway to Embedded Software Development Excellence · PlatformIO
Last scanned Jul 26, 2026, 5:47 AM
Overall score
Fair
Summary
This website uses Nginx hosted on HETZNER-AS - Hetzner Online GmbH, DE. SEO is fair (60/100) and accessibility is fair (60/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
10 issues found · 5 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.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
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.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
380 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Source: https://platformio.org/support
Meta tags
- Title
- Your Gateway to Embedded Software Development Excellence · PlatformIO
- Description
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- index, follow
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- —
- IP address
- 88.198.170.159
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- *.platformio.org
- Valid from
- Jun 13, 2026
- Valid to
- Sep 11, 2026
- Days until expiry
- 46
- SAN domains
- *.platformio.org, *.registry.platformio.org, platformio.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 4
Links
7 internal · 27 external · 0 broken
Images
1 total · 1 missing alt
Scripts / Styles
6 scripts · 3 stylesheets
JS / CSS size
421 KB · 127 KB
Page size
9.5 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 5
SEO issues
- Title longer than 60 characters
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
Accessibility issues
- Over half of images are missing alt text
- No H1 heading found
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://platformio.org
- Final URL
- https://platformio.org
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 380 ms
- HTML size
- 9.5 KB
- Redirect chain
- https://platformio.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does platformio.org use?
- platformio.org is built with Google Analytics, Nginx.
- Is platformio.org secure (HTTPS)?
- Yes. platformio.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 11, 2026.
- Who hosts platformio.org?
- platformio.org is hosted on HETZNER-AS - Hetzner Online GmbH, DE.
- What is platformio.org's SEO score?
- platformio.org scored 60/100 for SEO in the latest analysis (fair).
- What is platformio.org's overall website score?
- platformio.org has an overall SiteGraph score of 71/100, combining SEO, performance, security, and accessibility.
- Is platformio.org hiring?
- platformio.org has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card