zulip.com
Zulip — organized team chat
Last scanned Aug 5, 2026, 7:00 PM · 8 views
Overall score
Excellent
Summary
Zulip is an organized team chat app for distributed teams of all sizes. This website uses Nginx hosted on AWS. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: No structured data (JSON-LD) found.
Zulip is an organized team chat app for distributed teams of all sizes.
- United States
- Hosted on AWS
Products & pricing
Product and pricing information published in this site's own structured data.
Zulip plans and pricing
$8 USD
Top issues to fix
4 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
SEO
3 issue(s) found
Performance
265 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
0 overall since Jul 26, 2026
- Overall
- 92
- SEO
- 80
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Zulip is an organized team chat app for distributed teams of all sizes.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Zulip — organized team chat
- Description
- Zulip is an organized team chat app for distributed teams of all sizes.
- Canonical
- https://zulip.com/
- Language
- en
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- —
- IP address
- 35.175.102.70
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX |
|
| TXT |
|
| NS |
|
| CAA |
|
| CNAME | — |
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Amazon
- Subject
- zulip.com
- Valid from
- Feb 4, 2026
- Valid to
- Mar 5, 2027
- Days until expiry
- 212
- SAN domains
- zulip.com, *.zulip.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 5
Links
57 internal · 20 external · 0 broken
Images
9 total · 0 missing alt
Scripts / Styles
16 scripts · 3 stylesheets
JS / CSS size
209 B · 0 B
Page size
48.5 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
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://zulip.com
- Final URL
- https://zulip.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 265 ms
- HTML size
- 48.5 KB
- Redirect chain
- https://zulip.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does zulip.com use?
- zulip.com is built with Google Analytics, Nginx.
- Is zulip.com secure (HTTPS)?
- Yes. zulip.com uses TLS 1.3 with a certificate issued by Amazon, valid until Mar 5, 2027.
- Who hosts zulip.com?
- zulip.com is hosted on AWS.
- What is zulip.com's SEO score?
- zulip.com scored 80/100 for SEO in the latest analysis (great).
- What is zulip.com's overall website score?
- zulip.com has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
- What products does zulip.com offer?
- zulip.com offers Zulip plans and pricing.
- Has zulip.com's score changed over time?
- zulip.com's overall score has stayed steady at 92/100 since Jul 26, 2026.
- Is zulip.com hiring?
- zulip.com has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card