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threadreaderapp.com

Home – Thread Reader App

Last scanned Jul 26, 2026, 5:17 AM · 1 view

86

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

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+2 more issues — details in the sections below.

75

SEO

4 issue(s) found

100

Performance

594 ms

80

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

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

OpenGraph & Twitter Card

OpenGraph

og:title
Read and Share Twitter Threads easily!
og:description
Thread Reader helps you read and share the best of Twitter Threads
og:type
og:url

Twitter Card

twitter:card
summary_large_image
twitter:title
twitter:description
Thread Reader helps you read and share the best of Twitter Threads

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

TypeValue
A
  • 172.67.156.173
  • 104.21.50.47
AAAA
  • 2606:4700:3036::ac43:9cad
  • 2606:4700:3036::6815:322f
MX
  • amir.mx.cloudflare.net
  • isaac.mx.cloudflare.net
  • linda.mx.cloudflare.net
TXT
  • google-site-verification=yAlZFzuAticXegY1YGTgd9zMNopaIp4vwbtTk5iGitI
  • v=spf1 include:_spf.mx.cloudflare.net ~all
  • xxv=spf1 include:mailgun.org ~all
  • stripe-verification=bc604bc010ad16a6ed1336a2ae716ac24a4f3f2758b233bed95ddfbc045e2c8a
NS
  • elma.ns.cloudflare.com
  • jeremy.ns.cloudflare.com
CAA
CNAME
IPv6 supportYes

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

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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.