JWT Secret Key Generator – Generate Secure HMAC Keys & Decode Tokens
Free JWT secret key generator. Create secure 128 to 512-bit secrets for HS256, HS384 and HS512 in hex, Base64 or Base64URL. 100% in your browser.
Found 27 Oct 2026
Live 10 Nov 2026
Analysed 11 Nov 2026
found by FirstSited, also on 
- Contact page
- No contact email
What we found
- There are no SPF or DMARC records, so anyone can send email that claims to come from this domain.
- It sends five of the six security headers we check; the missing one is Content-Security-Policy.
- Built with Next.js and React, the site is served through Cloudflare, with a domain registered 2 weeks before launch.
Built with: 13 technologies
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/jzkguxdq/jwt-secret-key-generator-generate-secure-hmac-keys-decode-tokens"><img src="https://firstsited.com/badge/jzkguxdq/stack.svg" alt="JWT Secret Key Generator tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/jzkguxdq/jwt-secret-key-generator-generate-secure-hmac-keys-decode-tokens"><img src="https://firstsited.com/badge/jzkguxdq/stack.svg?theme=dark" alt="JWT Secret Key Generator tech stack on FirstSited" height="28"></a>
How it fits together
Each technology runs on, or extends, the one it sits under.
| Technology | Type |
|---|---|
| Infrastructure | |
Cloudflare
|
CDN |
Cloudflare DNS
|
DNS |
| HTTP/3 | Protocol |
| HSTS | Security |
| Build & Framework | |
Tailwind CSS
|
CSS framework |
React
(3)
|
Framework |
Next.js
(5)
|
Meta-framework |
Lucide Icons
|
UI library |
| Analytics & Marketing | |
Google Ads
|
Advertising |
Google Analytics
(2)
|
Analytics |
Google Search Console
|
SEO |
Yandex Domain Verification
|
SEO |
Google Tag Manager
(2)
|
Tag management |
Each technology links to its own page: which other new sites launched with it.
Site checks
| Custom title and meta description | |
| Open Graph tags (title, image, description) | |
| Twitter card meta tags | |
| Canonical URL declared | |
| Responsive viewport meta tag | |
| Favicon present | |
| Semantic HTML (nav, main, article) | |
| Page title is 61 characters Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible. |
| Referrer-Policy | |
| X-Frame-Options | |
| Permissions-Policy experimental | |
| X-Content-Type-Options | |
| Content-Security-Policy report-only, enforces nothing yet; report-only, so nothing is enforced yet | |
| Strict-Transport-Security | |
| X-XSS-Protection deprecated, not counted |
| Privacy policy /privacy | |
| Terms of service /terms | |
| Consent manager analytics set no tracking cookies on our visit (it may be opt-in) |
Mentions: GDPR, CCPA, Cookies, DPO
| robots.txt | |
| sitemap.xml 1 URLs | |
| security.txt optional | |
| llms.txt optional | |
| ads.txt | |
| humans.txt optional |
| llms.txt published not published | |
| No AI bots blocked in robots.txt | |
| Content-Signal none declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF | Not published | |
| DMARC | Not published | |
| DKIM | Not found at common selectors | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Without SPF and DMARC, anyone can send email that claims to come from this domain. Those two are the records to add first.
Hosting and network
| Network | CLOUDFLARENET - Cloudflare, Inc., US AS13335, US |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Let's Encrypt valid 27 Oct 2026 to 25 Jan 2027, as captured |
| Domain age | 16 days registered Oct 2026, Spaceship, Inc. |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 10 JS files, 1 CSS file 1 third-party domain, code splitting |
| Brand colours |
Storage: 0 items
Nothing stored in the browser on page load.
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 930 ms | fair, faster than 11% of sites |
| Largest contentful paint | 1,392 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 320 KB | light |
| Image weight | 6 KB | light |
| Images | 2 | 2 larger than shown |
| Third-party domains | 1 | |
| Console errors | 0 | none |
| Failed requests | 0 | none |
From a single automated render of the home page. A quick guide, not a substitute for Lighthouse or field data. How we measure
Notes
-
Looks AI-built: few AI signals.
How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
Which signals fired
Signal Points AI palette signals +5 - Performance comes from one render on 11 November 2026 and will vary between visits.
How we know
FirstSited records what new websites are built with, usually within a day of going live. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We checked this one in full: its tech stack, DNS, security headers and page basics. This page is what we saw on 11 November 2026; the live site may have changed since.
Every technology below links to its own page: which other new sites launched with it. Watch any of them and get every new site that uses it as it goes live, from £15 a month.