nostter.app
nostter
Last scanned Aug 24, 2026, 1:14 PM · 2 views
Overall score
Great
Summary
Nostr client for web. This website uses Google Analytics behind Cloudflare CDN. SEO is fair (70/100) and accessibility is excellent (90/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Missing canonical link.
Nostr client for web.
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.
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.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
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
4 issue(s) found
Performance
122 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Nostr client for web.
Meta tags
- Title
- nostter
- Description
- Nostr client for web.
- Canonical
- Language
- en-US
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, viewport-fit=cover
- Robots meta
- Manifest
- https://nostter.app/manifest.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- IP address
- 172.67.139.116
- ASN
- —
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
- nostter.app
- Valid from
- Aug 10, 2026
- Valid to
- Nov 8, 2026
- Days until expiry
- 75
- SAN domains
- nostter.app, *.nostter.app
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 1 · H3 0
Links
1 internal · 1 external · 0 broken
Images
1 total · 0 missing alt
Scripts / Styles
5 scripts · 5 stylesheets
JS / CSS size
33.2 KB · 172 B
Page size
9.3 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 18
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://nostter.app
- Final URL
- https://nostter.app
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 122 ms
- HTML size
- 9.3 KB
- Redirect chain
- https://nostter.app
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does nostter.app use?
- nostter.app is built with Svelte, Google Analytics, Cloudflare Analytics.
- Is nostter.app secure (HTTPS)?
- Yes. nostter.app uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Nov 8, 2026.
- Who hosts nostter.app?
- Hosting provider information for nostter.app is not available yet.
- What is nostter.app's SEO score?
- nostter.app scored 70/100 for SEO in the latest analysis (fair).
- What is nostter.app's overall website score?
- nostter.app has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card