silentcircle.com
Secure Enterprise Communication Solutions | Silent Circle
Last scanned Aug 24, 2026, 1:22 PM
Overall score
Great
Summary
Silent Circle is the world leader in secure communications, offering enterprise communications solutions to businesses, NGOs, and governments worldwide. This website uses Google Analytics behind CloudFront CDN. SEO is good (85/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
Silent Circle is the world leader in secure communications, offering enterprise communications solutions to businesses, NGOs, and governments worldwide. Silent Circle is the maker of Silent Phone, a premium end-to-end secure calling, messaging, file transfer, video, and conferencing application.
Top issues to fix
7 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
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.
+1 more issue — details in the sections below.
SEO
2 issue(s) found
Performance
511 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Silent Circle is the world leader in secure communications, offering enterprise communications solutions to businesses, NGOs, and governments worldwide. Silent Circle is the maker of Silent Phone, a premium end-to-end secure calling, messaging, file transfer, video, and conferencing application.
Meta tags
- Title
- Secure Enterprise Communication Solutions | Silent Circle
- Description
- Silent Circle is the world leader in secure communications, offering enterprise communications solutions to businesses, NGOs, and governments worldwide. Silent Circle is the maker of Silent Phone, a premium end-to-end secure calling, messaging, file transfer, video, and conferencing application.
- Canonical
- https://www.silentcircle.com/
- 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
- CloudFront
- IP address
- 18.66.57.95
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Amazon
- Subject
- www.silentcircle.com
- Valid from
- Nov 19, 2025
- Valid to
- Dec 17, 2026
- Days until expiry
- 115
- SAN domains
- www.silentcircle.com, blog.silentcircle.com, silentcircle.com
Security headers
- Strict-Transport-SecurityMissing
- 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 5 · H3 4
Links
22 internal · 14 external · 5 broken
Images
28 total · 0 missing alt
Scripts / Styles
10 scripts · 3 stylesheets
JS / CSS size
10.8 KB · 31.8 KB
Page size
23.7 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 148
SEO issues
- Meta description longer than 160 characters
- No structured data (JSON-LD) found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://silentcircle.com
- Final URL
- https://www.silentcircle.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 511 ms
- HTML size
- 23.7 KB
- Redirect chain
- https://silentcircle.com → https://www.silentcircle.com/
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Frequently asked questions
- What technology does silentcircle.com use?
- silentcircle.com is built with Google Analytics.
- Is silentcircle.com secure (HTTPS)?
- Yes. silentcircle.com uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 17, 2026.
- Who hosts silentcircle.com?
- Hosting provider information for silentcircle.com is not available yet.
- What is silentcircle.com's SEO score?
- silentcircle.com scored 85/100 for SEO in the latest analysis (great).
- What is silentcircle.com's overall website score?
- silentcircle.com has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card