Lead Harbour
We find people online asking where to buy products like yours, and write the reply for you. For anything you sell online: products, digital downloads, apps, courses or services.
What we found
- It publishes DMARC but no SPF record, so receivers cannot tell which servers may send its email.
- Built with Whop and Supabase, the site is hosted on Vercel and served through Cloudflare.
- Only 5 other launches we've crawled run this exact stack.
- It welcomes AI crawlers and publishes an llms.txt.
Built with: 21 technologies · Indie stack
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For light pages
<a href="https://firstsited.com/launch/2pqrugpr/lead-harbour"><img src="https://firstsited.com/badge/2pqrugpr/stack.svg" alt="Lead Harbour tech stack on FirstSited" height="28"></a>
For dark pages
<a href="https://firstsited.com/launch/2pqrugpr/lead-harbour"><img src="https://firstsited.com/badge/2pqrugpr/stack.svg?theme=dark" alt="Lead Harbour tech stack on FirstSited" height="28"></a>
| Technology | Type |
|---|---|
| Infrastructure | |
Cloudflare
|
CDN |
AWS Lambda
|
Cloud |
Hostinger DNS
|
DNS |
Vercel
|
Hosting |
Cloudflare Bot Management
|
Security |
| HSTS | Security |
Resend
|
Transactional email |
| Build & Framework | |
Google Sign-In
|
Auth |
Supabase
|
BaaS |
Lenis
(3)
|
JavaScript library |
WProofreader
(2)
|
JavaScript library |
jsDelivr
(2)
|
Package CDN |
| Analytics & Marketing | |
Facebook Pixel
(4)
|
Advertising |
Reddit Ads
(4)
|
Advertising |
Facebook Domain Verification
|
Marketing |
Google Search Console
|
SEO |
Facebook
|
Social |
Reddit
|
Social |
| Commerce & Payments | |
Whop
(4)
|
Ecommerce |
| Business Tools | |
Formspree
(2)
|
Forms |
| Other | |
LaunchLlama
|
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 64 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 /privacy.html | |
| Terms of service /terms.html |
Mentions: Cookies, Updated: November 1, 2026
| robots.txt | |
| sitemap.xml 44 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 ai-train = yes | |
| Content-Signal search = yes | |
| Content-Signal ai-input = yes | |
| Link headers none advertised |
| State | Record | Status |
|---|---|---|
| SPF | Not published | |
| DMARC p=none | Monitoring only (p=none) | |
| DKIM | Found | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Without SPF, receivers cannot tell which servers may send email for this domain.
Hosting and network
| Network | AMAZON-02 - Amazon.com, Inc., US AS16509, US |
|---|---|
| DNS | Hostinger DNS authoritative nameservers |
| DNSSEC | Not enabled DNS answers are unsigned |
| Certificate | Let's Encrypt valid 16 Oct 2026 to 14 Jan 2027, as captured |
| Green hosting | No record per The Green Web Foundation |
| Page build | 11 JS files, 3 CSS files 7 third-party domains, code splitting |
| Brand colours |
Storage: 13 items
| Name | Lifetime | Set by |
|---|---|---|
| _fbp | 2mo | Facebook Pixel |
| _rdt_uuid | 2mo | Reddit Ads |
| _wuid | 1y | - |
| _wuid_link | 1y | - |
| __cf_bm | < 1h | Cloudflare |
| Key | Size | Set by |
|---|---|---|
| lastExternalReferrer | 5 B | - |
| lastExternalReferrerTime | 13 B | - |
| _wfp | 71 B | Whop |
| _wsc_probed_at | 13 B | WProofreader |
| _wuid | 25 B | - |
| _wuid_link_domain | 16 B | - |
| Key | Size | Set by |
|---|---|---|
| _rdt_cfg | 58 B | Reddit Ads |
| _wsc_probed | 1 B | WProofreader |
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 682 ms | fair, faster than 19% of sites |
| Largest contentful paint | 1,032 ms | good |
| Layout shift | 0.08 | good |
| Page weight | 3.3 MB | heavy |
| Image weight | 88 KB | light |
| Images | 1 | 1 larger than shown |
| Third-party domains | 7 | |
| 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: some 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 AI code-structure signals +5 AI layout signals +5 - Performance comes from one render on 12 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 12 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.