octoprint.org
OctoPrint.org
Last scanned Jul 26, 2026, 5:17 AM
Overall score
Fair
Summary
OctoPrint is the snappy web interface for your 3D printer that allows you to control and monitor all aspects of your printer and print jobs, right from your browser. This website uses Nginx hosted on HETZNER-AS - Hetzner Online GmbH, DE behind Fastly CDN. SEO is fair (70/100) and accessibility is fair (70/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
OctoPrint is the snappy web interface for your 3D printer that allows you to control and monitor all aspects of your printer and print jobs, right from your browser.
- Germany
- Hosted on HETZNER-AS - Hetzner Online GmbH, DE
Top issues to fix
11 issues found · 3 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.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
TLS certificate expires in 30 days
SecurityRenew soon or enable auto-renewal to avoid a browser-warning outage.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
+5 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
158 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
OctoPrint is the snappy web interface for your 3D printer that allows you to control and monitor all aspects of your printer and print jobs, right from your browser.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- OctoPrint.org
- Description
- OctoPrint is the snappy web interface for your 3D printer that allows you to control and monitor all aspects of your printer and print jobs, right from your browser.
- Canonical
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- HETZNER-AS - Hetzner Online GmbH, DE
- CDN provider
- Fastly
- IP address
- 159.69.6.198
- ASN
- AS24940 (HETZNER-AS - Hetzner Online GmbH, DE)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- octoprint.org
- Valid from
- May 28, 2026
- Valid to
- Aug 26, 2026
- Days until expiry
- 30
- SAN domains
- octoprint.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyEnabled
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 4 · H2 3 · H3 4
Links
29 internal · 25 external · 3 broken
Images
15 total · 12 missing alt
Scripts / Styles
18 scripts · 10 stylesheets
JS / CSS size
334 KB · 196 KB
Page size
31.8 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 2
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Missing canonical link
- Multiple H1 headings found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://octoprint.org
- Final URL
- https://octoprint.org
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 158 ms
- HTML size
- 31.8 KB
- Redirect chain
- https://octoprint.org
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does octoprint.org use?
- octoprint.org is built with jQuery, Nginx.
- Is octoprint.org secure (HTTPS)?
- Yes. octoprint.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 26, 2026.
- Who hosts octoprint.org?
- octoprint.org is hosted on HETZNER-AS - Hetzner Online GmbH, DE, behind Fastly CDN.
- What is octoprint.org's SEO score?
- octoprint.org scored 70/100 for SEO in the latest analysis (fair).
- What is octoprint.org's overall website score?
- octoprint.org has an overall SiteGraph score of 79/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card