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Halmos.Science

A community for mathematics where claims carry machine-checked status. Post a proof in Lean and the kernel rules on it.

Added August 20, 2026 · Last analysed August 20, 2026 · via Hacker News

StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 20 August 2026; the live site may have changed since.

Halmos.Science ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: missing several security headers and no email security records.

Launched on Hacker News on August 20, 2026. The site is hosted on Cogent Communications in the United States, with a domain registered the day of launch. The crawl picked up 4 technologies on this site, covering analytics, DNS providers, os, and servers. The stack includes Clicky, nginx, and Ubuntu.

If you own this site, refresh the snapshot and see the full fix list any time →

8.6
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 5 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (4)

Infrastructure
DNS VPS.org
OS Ubuntu
Server nginx
Analytics & Marketing
Analytics Clicky

Infrastructure

DNS
VPS.org
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 19 Aug 2026 to 17 Nov 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
1 day
Registered Aug 2026 · Dynadot Inc

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC Not published. Receivers fall back to permissive defaults.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (1)

Cookies (1)
NameLifetimeDetected as
sessionid 14d -

Readiness Breakdown How?

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)

Performance How?

454 ms Server response
34% Faster than peers
948 ms Largest contentful paint
0.00 Cumulative layout shift
363 KB Page weight
1 Third-party domains
0 Console errors
0 Failed requests

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

Vibe Score Breakdown How?

SignalPoints
AI writing signals +5

This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.

AI Stance

No AI stance declared
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (18 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy/
Terms of Service
/terms/
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
90% unique

Security Headers (3/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

3 JS files
2 CSS files
1 Third-party domains

Brand Colours

App Manifest

Halmos
display: standalone 2 icons
theme #f7f6f3
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.