dubcdn.com
Introduction - Dub
Last scanned Jul 26, 2026, 5:48 AM · 1 view
Overall score
Excellent
Summary
Learn more about the Dub Analytics script and how to install it. This website uses Next.js behind Vercel CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (95/100) and performance excellent (90/100). Top issue: robots.txt not found.
Learn more about the Dub Analytics script and how to install it.
Top issues to fix
4 issues found
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
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
2 issue(s) found
Performance
213 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Learn more about the Dub Analytics script and how to install it.
Contact
Email, phone, and address published on this site's own pages.
- support@dub.co
Meta tags
- Title
- Introduction - Dub
- Description
- Learn more about the Dub Analytics script and how to install it.
- Canonical
- https://dub.co/docs/sdks/client-side/introduction
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, viewport-fit=cover
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Vercel
- 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
- *.dub.co
- Valid from
- Jun 24, 2026
- Valid to
- Sep 22, 2026
- Days until expiry
- 55
- SAN domains
- *.dub.co, dub.co
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 15 · H3 4
Links
21 internal · 10 external · 20 broken
Images
3 total · 0 missing alt
Scripts / Styles
130 scripts · 2 stylesheets
JS / CSS size
201 KB · 1011 B
Page size
358 KB
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
No accessibility issues detected.
Scan details
- Requested URL
- https://dubcdn.com
- Final URL
- https://dub.co/docs/sdks/client-side/introduction
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 206 ms
- HTML size
- 358 KB
- Redirect chain
- https://dubcdn.com → https://www.dubcdn.com/ → https://dub.co/docs/sdks/client-side/introduction
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does dubcdn.com use?
- dubcdn.com is built with Next.js.
- Is dubcdn.com secure (HTTPS)?
- Yes. dubcdn.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 22, 2026.
- Who hosts dubcdn.com?
- Hosting provider information for dubcdn.com is not available yet.
- What is dubcdn.com's SEO score?
- dubcdn.com scored 90/100 for SEO in the latest analysis (excellent).
- What is dubcdn.com's overall website score?
- dubcdn.com has an overall SiteGraph score of 93/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card