SubLib
Folders for your YouTube subscriptions. Every new video, sorted, nothing missed. Free Android app by Shubuz Studio.
Added 10 Nov 2026
Analysed 10 Nov 2026
via 
What we found
- It has a privacy policy, but we found no terms of service.
- It publishes SPF but no DMARC record, so receivers decide for themselves what to do with email that fails.
- It sends five of the six security headers we check; the missing one is Content-Security-Policy.
- The site is hosted on Netlify, with a domain registered 3 weeks before launch.
Built with: 6 technologies
| Technology | Type |
|---|---|
| Infrastructure | |
Cloudflare DNS
|
DNS |
Netlify
|
Hosting |
| HSTS | Security |
Zoho Mail
(2)
|
Business email |
| Analytics & Marketing | |
Google Search Console
|
SEO |
| Business Tools | |
Zoho
|
SaaS |
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 | |
| Permissions-Policy experimental | |
| X-Content-Type-Options | |
| Content-Security-Policy | |
| Strict-Transport-Security | |
| X-XSS-Protection deprecated, not counted |
| Privacy policy /apps/sublib/privacy/ | |
| Terms of service not detected |
| robots.txt | |
| sitemap.xml 1 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 | Not published | |
| DKIM | Not found at common selectors | |
| MTA-STS | Not deployed | |
| TLS-RPT | Not configured |
Without DMARC, receivers fall back to their own rules for email that fails SPF.
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 19 Oct 2026 to 17 Jan 2027, as captured |
| Domain age | 23 days registered Oct 2026, Cloudflare, Inc. |
| Green hosting | No record per The Green Web Foundation |
| Page build | 0 JS files, 0 CSS files 1 third-party domain |
| Brand colours |
Storage: 0 items
Nothing stored in the browser on page load.
Performance
| Measure | This site | Reading |
|---|---|---|
| Server response | 557 ms | fair, faster than 24% of sites |
| Largest contentful paint | 1,500 ms | good |
| Layout shift | 0.00 | good |
| Page weight | 193 KB | light |
| Image weight | 87 KB | light |
| Images | 14 | 7 without alt text |
| 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: no AI signals. How much the site looks AI-generated. It is a pattern match shown for interest, not a verdict.
- Performance comes from one render on 10 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 10 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.