threadreaderapp.com
Home – Thread Reader App
Last scanned Jul 26, 2026, 5:17 AM · 1 view
Overall score
Great
Summary
Thread Reader helps you discover and read the best of Twitter Threads. This website uses Cloudflare Analytics hosted on Cloudflare behind Cloudflare CDN. SEO is good (75/100) and accessibility is excellent (90/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing canonical link.
Thread Reader helps you discover and read the best of Twitter Threads
- United States
- Hosted on Cloudflare
Top issues to fix
8 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 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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+2 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
594 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Thread Reader helps you discover and read the best of Twitter Threads
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Home – Thread Reader App
- Description
- Thread Reader helps you discover and read the best of Twitter Threads
- Canonical
- Language
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- Manifest
- https://threadreaderapp.com/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 172.67.156.173
- 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
- Let's Encrypt
- Subject
- threadreaderapp.com
- Valid from
- Jul 8, 2026
- Valid to
- Oct 6, 2026
- Days until expiry
- 72
- SAN domains
- threadreaderapp.com, threadshots.threadreaderapp.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 3 · H2 3 · H3 1
Links
22 internal · 39 external · 1 broken
Images
41 total · 1 missing alt
Scripts / Styles
9 scripts · 4 stylesheets
JS / CSS size
322 KB · 50.0 KB
Page size
57.6 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 18
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing canonical link
- Multiple H1 headings found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
- Missing <html lang> attribute
Scan details
- Requested URL
- https://threadreaderapp.com
- Final URL
- https://threadreaderapp.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 593 ms
- HTML size
- 57.6 KB
- Redirect chain
- https://threadreaderapp.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does threadreaderapp.com use?
- threadreaderapp.com is built with Ruby on Rails, Bootstrap, Cloudflare Analytics, Google Ads.
- Is threadreaderapp.com secure (HTTPS)?
- Yes. threadreaderapp.com uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 6, 2026.
- Who hosts threadreaderapp.com?
- threadreaderapp.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is threadreaderapp.com's SEO score?
- threadreaderapp.com scored 75/100 for SEO in the latest analysis (fair).
- What is threadreaderapp.com's overall website score?
- threadreaderapp.com has an overall SiteGraph score of 86/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card