Linear Diffs for Mobile
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Added 8 Nov 2026
Analysed 8 Nov 2026
via 
What we found
- Analytics set tracking cookies before any opt-in, and we found no consent manager.
- It sends four of the six security headers we check; missing are Permissions-Policy and X-Content-Type-Options.
- Built with Sanity and Cursor, the site is served through Cloudflare, with a domain registered in 2018.
- Only one other launch we've crawled runs this exact stack.
Built with: 42 technologies · Scale-up stack
Embed this on your site
For light pages
<a href="https://firstsited.com/launch/9n1tdv0o/linear-diffs-for-mobile"><img src="https://firstsited.com/badge/9n1tdv0o/stack.svg" alt="Linear Diffs for Mobile tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/9n1tdv0o/linear-diffs-for-mobile"><img src="https://firstsited.com/badge/9n1tdv0o/stack.svg?theme=dark" alt="Linear Diffs for Mobile tech stack on FirstSited" height="28"></a>
How it fits together
Each technology runs on, or extends, the one it sits under.
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) |
| Referrer-Policy | |
| X-Frame-Options via CSP frame-ancestors | |
| Permissions-Policy experimental | |
| X-Content-Type-Options | |
| Content-Security-Policy | |
| Strict-Transport-Security | |
| X-XSS-Protection deprecated, not counted |
| Privacy policy /privacy | |
| Terms of service /terms | |
| Consent manager not detected; analytics set tracking cookies on our visit with no opt-in step |
Mentions: GDPR, Cookies, Do Not Sell
| robots.txt | |
| sitemap.xml 1,007 URLs | |
| security.txt | |
| 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=reject | Reject (strict) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Hosting and network
| Network | CLOUDFLARENET - Cloudflare, Inc., US AS13335, US |
|---|---|
| DNS | Cloudflare DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Google Trust Services valid 3 Nov 2026 to 1 Feb 2027, as captured |
| Domain age | 8.5 years registered May 2018, CloudFlare, Inc. |
| Green hosting | Yes per The Green Web Foundation |
| Page build | 4 JS files, 101 CSS files 5 third-party domains, code splitting |
| App manifest | Linear display standalone; 8 icons |
| Brand colours |
Storage: 3 items
| Key | Size | Set by |
|---|---|---|
| ph_phc_PaCjzqaetuAlYgXjb0uftDOw8QzOmXfWIbD7nkaYrjr_posthog | 1021 B | PostHog |
| ph_phc_PaCjzqaetuAlYgXjb0uftDOw8QzOmXfWIbD7nkaYrjr_primary_window_exists | 4 B | PostHog |
| ph_phc_PaCjzqaetuAlYgXjb0uftDOw8QzOmXfWIbD7nkaYrjr_window_id | 38 B | PostHog |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 204 ms | good, faster than 58% of sites |
| Largest contentful paint | 1,072 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 8.5 MB | heavy |
| Image weight | 3.9 MB | heavy |
| Images | 10 | 5 larger than shown |
| 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: strong 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 Recognised AI builder signature +100 - Analytics set tracking cookies on our visit and no consent manager was detected. UK and EU GDPR require opt-in before tracking runs, and more than 20 US states require honouring opt-out requests.
- Performance comes from one render on 8 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 8 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.