NullKey
NullKey is an offline encrypted vault for Android 12L and later. Free for up to 30 items. No account, no ads, and no developer server.
Estimated origin: United Kingdom
Added 9 Nov 2026
Analysed 9 Nov 2026
via 
What we found
- It sends five of the six security headers we check; the missing one is Permissions-Policy.
- DMARC only monitors (p=none), so email spoofing this domain is still delivered.
- The site is hosted on Vercel and served through Cloudflare, with a domain registered 4 months before launch.
- It welcomes AI crawlers and publishes an llms.txt.
Built with: 13 technologies
| Technology | Type |
|---|---|
| Infrastructure | |
Cloudflare
|
CDN |
Cloudflare DNS
|
DNS |
Vercel
|
Hosting |
Cloudflare Bot Management
|
Security |
| HSTS | Security |
Google Workspace
(3)
|
Business email |
| Build & Framework | |
Google Fonts
|
Font |
| Analytics & Marketing | |
Google Analytics
(4)
|
Analytics |
Google
|
Consent |
Facebook Domain Verification
|
Marketing |
Google Search Console
|
SEO |
Google Tag Manager
(3)
|
Tag management |
| Other | |
Product Hunt
|
Directory |
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 68 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 | |
| Strict-Transport-Security | |
| X-XSS-Protection deprecated, not counted |
| Privacy policy /nullkey/privacy/ | |
| Terms of service /nullkey/terms/ | |
| Consent manager Google |
| robots.txt | |
| sitemap.xml 82 URLs | |
| security.txt optional | |
| llms.txt | |
| ads.txt only for ad-funded sites | |
| humans.txt optional |
| llms.txt published | |
| No AI bots blocked in robots.txt | |
| Content-Signal none declared | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF ~all | Soft-fail (~all), common and accepted | |
| DMARC p=none | Monitoring only (p=none) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | AMAZON-02 - Amazon.com, Inc., US AS16509, US |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Let's Encrypt valid 8 Sep 2026 to 7 Dec 2026, as captured |
| Domain age | 4 months registered Jul 2026, Porkbun LLC |
| Green hosting | No record per The Green Web Foundation |
| Page build | 3 JS files, 2 CSS files 5 third-party domains |
| Brand colours |
Storage: 1 item
| Name | Lifetime | Set by |
|---|---|---|
| __cf_bm | < 1h | Cloudflare |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 547 ms | fair, faster than 27% of sites |
| Largest contentful paint | 776 ms | good |
| Layout shift | 0.02 | good |
| Page weight | 1.5 MB | fair |
| Image weight | 525 KB | fair |
| Images | 11 | 9 larger than shown, 3 without alt text |
| Third-party domains | 5 | |
| 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 onboarding signals +5 AI typography signals +15 - Performance comes from one render on 9 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 9 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.