spdx.org
SPDX – Linux Foundation Projects Site
Last scanned Jul 26, 2026, 5:34 AM
Overall score
Fair
Summary
This website uses WordPress hosted on Fastly behind Fastly CDN. SEO is fair (70/100) and accessibility is fair (70/100). Security scores good (75/100) and performance good (80/100). Top issue: Missing meta description.
- United States
- Hosted on Fastly
Top issues to fix
9 issues found · 4 high priority
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.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Slow estimated load (4.2s)
PerformanceUse a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.
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
4.21 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Meta tags
- Title
- SPDX – Linux Foundation Projects Site
- Description
- Canonical
- https://spdx.dev/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1, maximum-scale=1, user-scalable=0
- Robots meta
- max-image-preview:large
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
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
- adlik.ai
- Valid from
- May 29, 2026
- Valid to
- Aug 27, 2026
- Days until expiry
- 32
- SAN domains
- adlik.ai, alpha-omega.dev, alvarium.org, angelml.ai, aousd.org, automatecompliance.org, camaraproject.org, cd.foundation, cdla.dev, cip-project.org, compliance.linuxfoundation.org, confidentialcomputing.io, ebpf.foundation, forestflow.ai, geisa.lfenergy.org, interussplatform.org, iovisor.org, kernelci.org, lf-charities.org, lf-india.org, lfaidata.foundation, lfconnectivity.dev, lfedge.org, lfenergy.org, lfnetworking.org, lfopensource.com, lfprojects.org, linuxfoundation.charity, live-lfprojects3.linuxfoundation.org, ltsi.linuxfoundation.org, magmacore.org, margo.org, nephio.org, nextarch.io, o3df.org, openbmc.org, openeffects.org, openkinetic.org, openmainframeproject.org, openmv.org, opensecuritycontroller.org, openswitch.net, openwallet.foundation, opiproject.org, opnfv.org, overturemaps.org, projectacrn.org, riseproject.dev, seapath.energy, socbb.org, sofproject.org, sonicfoundation.dev, sparklyr.ai, spdx.dev, sylvaproject.org, uc.foundation, ultraethernet.org, viskores.org, www.adlik.ai, www.cip-project.org, www.openmv.org, www.opnfv.org, www.yoctoproject.org, xgvela.org, yoctoproject.org
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 4 · H3 3
Links
31 internal · 68 external · 0 broken
Images
79 total · 62 missing alt
Scripts / Styles
43 scripts · 30 stylesheets
JS / CSS size
601 KB · 218 KB
Page size
178 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://spdx.org
- Final URL
- https://spdx.dev/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 4.20 s
- HTML size
- 178 KB
- Redirect chain
- https://spdx.org → https://spdx.dev/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does spdx.org use?
- spdx.org is built with WordPress, jQuery, Nginx.
- Is spdx.org secure (HTTPS)?
- Yes. spdx.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Aug 27, 2026.
- Who hosts spdx.org?
- spdx.org is hosted on Fastly, behind Fastly CDN.
- What is spdx.org's SEO score?
- spdx.org scored 70/100 for SEO in the latest analysis (fair).
- What is spdx.org's overall website score?
- spdx.org has an overall SiteGraph score of 74/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card