openzeppelin.com
OpenZeppelin | The Security Standard for Onchain Finance
Last scanned Jul 26, 2026, 4:17 PM · 1 view
Overall score
Great
Summary
OpenZeppelin is the security standard for onchain finance. This website uses Google Analytics behind Cloudflare CDN. SEO is good (75/100) and accessibility is fair (70/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
OpenZeppelin is the security standard for onchain finance. Institutional-grade smart contract audits, contract libraries, and open source tools trusted by leading financial institutions. | Smart Contracts Audit
Top issues to fix
6 issues found · 1 high priority
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
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.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
4 issue(s) found
Performance
35 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
OpenZeppelin is the security standard for onchain finance. Institutional-grade smart contract audits, contract libraries, and open source tools trusted by leading financial institutions. | Smart Contracts Audit
Meta tags
- Title
- OpenZeppelin | The Security Standard for Onchain Finance
- Description
- OpenZeppelin is the security standard for onchain finance. Institutional-grade smart contract audits, contract libraries, and open source tools trusted by leading financial institutions. | Smart Contracts Audit
- Canonical
- https://www.openzeppelin.com
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- 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
- Google Trust Services
- Subject
- c2f5d3d5.sni.cloudflaressl.com
- Valid from
- Jun 13, 2026
- Valid to
- Sep 11, 2026
- Days until expiry
- 44
- SAN domains
- c2f5d3d5.sni.cloudflaressl.com, www.openzeppelin.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 2 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 3
Links
55 internal · 18 external · 20 broken
Images
203 total · 107 missing alt
Scripts / Styles
24 scripts · 11 stylesheets
JS / CSS size
3.8 KB · 7.4 KB
Page size
162 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 structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Over half of images are missing alt text
Scan details
- Requested URL
- https://openzeppelin.com
- Final URL
- https://www.openzeppelin.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 32 ms
- HTML size
- 162 KB
- Redirect chain
- https://openzeppelin.com → https://www.openzeppelin.com/
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Frequently asked questions
- What technology does openzeppelin.com use?
- openzeppelin.com is built with jQuery, Google Analytics.
- Is openzeppelin.com secure (HTTPS)?
- Yes. openzeppelin.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 11, 2026.
- Who hosts openzeppelin.com?
- Hosting provider information for openzeppelin.com is not available yet.
- What is openzeppelin.com's SEO score?
- openzeppelin.com scored 75/100 for SEO in the latest analysis (fair).
- What is openzeppelin.com's overall website score?
- openzeppelin.com has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card