flagsmith.com
Flagsmith - Open Source Feature Flag Service
Last scanned Jul 26, 2026, 5:17 AM · 1 view
Overall score
Excellent
Summary
Flagsmith makes it easy to create and manage feature flags. This website uses jQuery hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (100/100) and accessibility is excellent (100/100). Security scores excellent (95/100) and performance good (85/100).
Flagsmith
Flagsmith makes it easy to create and manage feature flags. Roll out, segment, and optimise. Stay secure with on-premise and private cloud hosting.
- 4th Floor, 86-90 Paul Street, London, London, EC2A 4NE, UK
- Hosted on Cloudflare
Products & pricing
Product and pricing information published in this site's own structured data.
Ship Faster & Control Releases
$50 USD
Open source feature flags
$7 USD
Top issues to fix
1 issue found
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
SEO
0 issue(s) found
Performance
481 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Flagsmith
Flagsmith makes it easy to create and manage feature flags. Roll out, segment, and optimise. Stay secure with on-premise and private cloud hosting.
Contact
Email, phone, and address published on this site's own pages.
- info@flagsmith.com
- Phone
- +
- Address
- 4th Floor, 86-90 Paul Street, London, London, EC2A 4NE, UK
Meta tags
- Title
- Flagsmith - Open Source Feature Flag Service
- Description
- Flagsmith makes it easy to create and manage feature flags. Roll out, segment, and optimise. Stay secure with on-premise and private cloud hosting.
- Canonical
- https://www.flagsmith.com
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 198.202.211.1
- ASN
- AS209242 (CLOUDFLARESPECTRUM - Cloudflare London, LLC, US)
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
- www.flagsmith.com
- Valid from
- Jul 4, 2026
- Valid to
- Oct 2, 2026
- Days until expiry
- 65
- SAN domains
- www.flagsmith.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 6 · H3 13
Links
46 internal · 11 external · 0 broken
Images
83 total · 0 missing alt
Scripts / Styles
26 scripts · 1 stylesheets
JS / CSS size
2.2 MB · 252 KB
Page size
128 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 8
- sitemap.xml
- Found
- URLs in sitemap
- 362
SEO issues
No SEO issues detected.
Accessibility issues
No accessibility issues detected.
Careers
| Role | Location | Posted |
|---|---|---|
| Product Marketer | — | — |
| UI/UX Designer | — | — |
| Unsolicited Application | — | — |
Scan details
- Requested URL
- https://flagsmith.com
- Final URL
- https://www.flagsmith.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 479 ms
- HTML size
- 128 KB
- Redirect chain
- https://flagsmith.com → https://www.flagsmith.com/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does flagsmith.com use?
- flagsmith.com is built with jQuery.
- Is flagsmith.com secure (HTTPS)?
- Yes. flagsmith.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Oct 2, 2026.
- Who hosts flagsmith.com?
- flagsmith.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is flagsmith.com's SEO score?
- flagsmith.com scored 100/100 for SEO in the latest analysis (excellent).
- What is flagsmith.com's overall website score?
- flagsmith.com has an overall SiteGraph score of 95/100, combining SEO, performance, security, and accessibility.
- What company operates flagsmith.com?
- flagsmith.com is operated by Flagsmith. Flagsmith makes it easy to create and manage feature flags. Roll out, segment, and optimise. Stay secure with on-premise and private cloud hosting.
- What products does flagsmith.com offer?
- flagsmith.com offers Ship Faster & Control Releases, Open source feature flags.
- Is flagsmith.com hiring?
- Yes. flagsmith.com has 3 open roles listed on their careers page.
OpenGraph & Twitter Card
OpenGraph
Twitter Card