ultralibrarian.com
Free Online PCB CAD Library | Ultra Librarian
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Fair
Summary
Access free symbols, footprints, and 3D models in over 30 CAD formats from Ultra Librarian, the world's largest CAD library. This website uses WordPress behind Fastly CDN. SEO is excellent (90/100) and accessibility is fair (70/100). Security scores good (75/100) and performance fair (70/100). Top issue: robots.txt not found.
Free Online PCB CAD Library
Access free symbols, footprints, and 3D models in over 30 CAD formats from Ultra Librarian, the world's largest CAD library.
Top issues to fix
7 issues found · 2 high priority
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.
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.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
SEO
2 issue(s) found
Performance
33 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Free Online PCB CAD Library
Access free symbols, footprints, and 3D models in over 30 CAD formats from Ultra Librarian, the world's largest CAD library.
Meta tags
- Title
- Free Online PCB CAD Library | Ultra Librarian
- Description
- Access free symbols, footprints, and 3D models in over 30 CAD formats from Ultra Librarian, the world's largest CAD library.
- Canonical
- https://www.ultralibrarian.com/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Fastly
- 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
- Let's Encrypt
- Subject
- ultralibrarian.com
- Valid from
- Jul 4, 2026
- Valid to
- Oct 2, 2026
- Days until expiry
- 38
- SAN domains
- resources.ultralibrarian.com, ultralibrarian.com, www.ultralibrarian.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 9 · H3 14
Links
73 internal · 46 external · 1 broken
Images
101 total · 86 missing alt
Scripts / Styles
91 scripts · 46 stylesheets
JS / CSS size
940 KB · 949 KB
Page size
1.1 MB
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
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://ultralibrarian.com
- Final URL
- https://www.ultralibrarian.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 11 ms
- HTML size
- 1.1 MB
- Redirect chain
- https://ultralibrarian.com → https://www.ultralibrarian.com/
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Frequently asked questions
- What technology does ultralibrarian.com use?
- ultralibrarian.com is built with WordPress, WooCommerce, jQuery, Google Analytics, Google Ads, Meta Pixel, Nginx.
- Is ultralibrarian.com secure (HTTPS)?
- Yes. ultralibrarian.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 2, 2026.
- Who hosts ultralibrarian.com?
- Hosting provider information for ultralibrarian.com is not available yet.
- What is ultralibrarian.com's SEO score?
- ultralibrarian.com scored 90/100 for SEO in the latest analysis (excellent).
- What is ultralibrarian.com's overall website score?
- ultralibrarian.com has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
- What company operates ultralibrarian.com?
- ultralibrarian.com is operated by Free Online PCB CAD Library. Access free symbols, footprints, and 3D models in over 30 CAD formats from Ultra Librarian, the world's largest CAD library.
OpenGraph & Twitter Card
OpenGraph
Twitter Card