inboxsdk.com
InboxSDK - Build Apps inside Gmail
Last scanned Jul 26, 2026, 5:17 AM
Overall score
Fair
Summary
The InboxSDK is high level Javascript library used to easily build browser extensions that interact with Gmail. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance good (80/100). Top issue: Missing canonical link.
The InboxSDK is high level Javascript library used to easily build browser extensions that interact with Gmail
- United States
- Hosted on Cloudflare
Top issues to fix
10 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.
Slow estimated load (7.0s)
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.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
+4 more issues — details in the sections below.
SEO
5 issue(s) found
Performance
7.04 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
The InboxSDK is high level Javascript library used to easily build browser extensions that interact with Gmail
Meta tags
- Title
- InboxSDK - Build Apps inside Gmail
- Description
- The InboxSDK is high level Javascript library used to easily build browser extensions that interact with Gmail
- Canonical
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 104.21.74.184
- ASN
- AS13335 (CLOUDFLARENET - Cloudflare, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- inboxsdk.com
- Valid from
- Jul 17, 2026
- Valid to
- Oct 15, 2026
- Days until expiry
- 80
- SAN domains
- inboxsdk.com, www.inboxsdk.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 14 · H2 2 · H3 0
Links
2 internal · 2 external · 0 broken
Images
119 total · 0 missing alt
Scripts / Styles
9 scripts · 1 stylesheets
JS / CSS size
256 B · 1.5 KB
Page size
50.3 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- Multiple H1 headings found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
Scan details
- Requested URL
- https://inboxsdk.com
- Final URL
- https://www.inboxsdk.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 7.04 s
- HTML size
- 50.3 KB
- Redirect chain
- https://inboxsdk.com → https://www.inboxsdk.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does inboxsdk.com use?
- inboxsdk.com is built with jQuery, Cloudflare Analytics.
- Is inboxsdk.com secure (HTTPS)?
- Yes. inboxsdk.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 15, 2026.
- Who hosts inboxsdk.com?
- inboxsdk.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is inboxsdk.com's SEO score?
- inboxsdk.com scored 70/100 for SEO in the latest analysis (fair).
- What is inboxsdk.com's overall website score?
- inboxsdk.com has an overall SiteGraph score of 78/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card