use-application-dns.net
Client Challenge
Last scanned Jul 26, 2026, 5:17 AM · 1 view
Overall score
Fair
Summary
This website is hosted on Fastly. SEO is fair (55/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
- United States
- Hosted on Fastly
Top issues to fix
11 issues found · 4 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 meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
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.
+5 more issues — details in the sections below.
SEO
6 issue(s) found
Performance
255 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Client Challenge
- Description
- Canonical
- Language
- en
- Charset
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
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
- support.mozilla.org
- Valid from
- Jun 3, 2026
- Valid to
- Sep 1, 2026
- Days until expiry
- 36
- SAN domains
- support.mozilla.org
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 0 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
1 scripts · 1 stylesheets
JS / CSS size
1.3 KB · 179 B
Page size
3.0 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 646
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Scan details
- Requested URL
- https://use-application-dns.net
- Final URL
- https://support.mozilla.org/en-US/kb/canary-domain-use-application-dnsnet
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 255 ms
- HTML size
- 3.0 KB
- Redirect chain
- https://use-application-dns.net → https://support.mozilla.org/en-US/kb/canary-domain-use-application-dnsnet
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does use-application-dns.net use?
- We did not detect any specific technologies for use-application-dns.net in the latest scan.
- Is use-application-dns.net secure (HTTPS)?
- Yes. use-application-dns.net uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 1, 2026.
- Who hosts use-application-dns.net?
- use-application-dns.net is hosted on Fastly, behind Fastly CDN.
- What is use-application-dns.net's SEO score?
- use-application-dns.net scored 55/100 for SEO in the latest analysis (fair).
- What is use-application-dns.net's overall website score?
- use-application-dns.net has an overall SiteGraph score of 76/100, combining SEO, performance, security, and accessibility.
- Is use-application-dns.net hiring?
- use-application-dns.net has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card