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simplex.chat

SimpleX Chat: private and secure messenger without any user IDs (not even random)

Last scanned Jul 26, 2026, 4:17 PM · 1 view

77

Overall score

Fair

Summary

SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls. This website uses Tailwind CSS hosted on Fastly behind Fastly CDN. SEO is fair (65/100) and accessibility is fair (70/100). Security scores good (75/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls.

United States
Hosted on Fastly

Top issues to fix

10 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

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

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

+4 more issues — details in the sections below.

65

SEO

6 issue(s) found

100

Performance

5 ms

75

Security

HTTPS & header checks

70

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.

SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls.

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
SimpleX Chat: private and secure messenger without any user IDs (not even random)
Description
SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls.
Canonical
Language
en
Charset
UTF-8
Viewport
width=device-width, initial-scale=1.0, viewport-fit=cover
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
SimpleX Chat: private and secure messenger without any user IDs (not even random)
og:description
SimpleX Chat - a private and encrypted messenger without any user IDs (not even random ones)! Make a private connection via link / QR code to send messages and make calls.
og:type
website
og:url
https://simplex.chat/

Twitter Card

twitter:card
summary
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
Fastly
CDN provider
Fastly
IP address
185.199.110.153
ASN
AS54113 (FASTLY - Fastly, Inc., US)

DNS records

TypeValue
A
  • 185.199.110.153
  • 185.199.108.153
  • 185.199.109.153
  • 185.199.111.153
AAAA
MX
  • simplex-chat.mail.protection.outlook.com
TXT
  • v=spf1 include:spf.protection.outlook.com -all
  • MS=ms74954713
NS
  • ns4.linode.com
  • ns2.linode.com
  • ns1.linode.com
  • ns3.linode.com
  • ns5.linode.com
CAA
CNAME
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
simplex.chat
Valid from
Jul 3, 2026
Valid to
Oct 1, 2026
Days until expiry
64
SAN domains
simplex.chat, www.simplex.chat

Security headers

  • Strict-Transport-SecurityEnabled
  • 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 6 · H3 0

Links

56 internal · 27 external · 0 broken

Images

48 total · 34 missing alt

Scripts / Styles

8 scripts · 3 stylesheets

JS / CSS size

40.6 KB · 90.2 KB

Page size

78.0 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Title longer than 60 characters
  • Meta description longer than 160 characters
  • Missing canonical link
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Over half of images are missing alt text

Careers

View careers page

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://simplex.chat
Final URL
https://simplex.chat
HTTP status
200
HTTP version
HTTP/2
Response time
4 ms
HTML size
78.0 KB
Redirect chain
https://simplex.chat

See something wrong on this report? Request a correction

Frequently asked questions

What technology does simplex.chat use?
simplex.chat is built with Tailwind CSS.
Is simplex.chat secure (HTTPS)?
Yes. simplex.chat uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 1, 2026.
Who hosts simplex.chat?
simplex.chat is hosted on Fastly, behind Fastly CDN.
What is simplex.chat's SEO score?
simplex.chat scored 65/100 for SEO in the latest analysis (fair).
What is simplex.chat's overall website score?
simplex.chat has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
Is simplex.chat hiring?
simplex.chat has a careers page; check it directly for current openings.