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Halff

A discreet popup every 30 minutes. One click. By evening, you know exactly where your day went.

Productivity
France Estimated origin: France

Added July 20, 2026 · Last analysed July 20, 2026 · via · 80% unique tagline

Own this Launch?
Screenshot of Halff

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 July 2026; the live site may have changed since.

Halff has the basics covered well, with complete legal pages and a thorough launch checklist. Main gaps: no Content-Security-Policy, no robots.txt or sitemap, and incomplete email security.

Launched on Product Hunt on July 20, 2026. The site is hosted on Netlify. Our crawler found 6 technologies on this site, covering analytics, baas, DNS providers, and forms. The stack includes Formspree, GoDaddy DNS, and HSTS.

It's also on one of the most common stacks we track, shared by 1,630 launches and more locked down than the typical Product Hunt launch.

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

7.4
StackScope Score
Good
100/100 Launch Readiness
Launch ready
5/6 Security Headers
Strong
3/3 Legal
Complete
0/2 Crawl files
Missing
93/100 Performance
Fast
Vibe Score 0 · No 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 (6) · Indie stack

Infrastructure
DNS GoDaddy DNS
Hosting Netlify
Security HSTS
Build & Framework
BaaS Supabase
Analytics & Marketing
Analytics Umami (3)
Business Tools
Forms Formspree

Infrastructure

Network
AMAZON-02 - Amazon.com, Inc., US
AS16509 · US
DNS
GoDaddy DNS
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 15 Jul 2026 to 13 Oct 2026
Certificate as captured in this snapshot, not a live check.

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 p=quarantine Quarantine (moderate)
?
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 (0)

This site uses no client-side storage we could detect on page load.

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?

805 ms Server response
16% Faster than peers
628 ms Largest contentful paint
0.00 Cumulative layout shift
35 KB Page weight
2 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.

AI Stance

No AI stance declared
✗ llms.txt published
✓ No AI bots blocked in robots.txt
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✗ robots.txt
✗ sitemap.xml
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/confidentialite
✓ Terms of Service
/cgu
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
96% unique
Mentions:
Cookies

Security Headers (5/6)

✓
Referrer-Policy
✓
X-Frame-Options
✓
Permissions-Policy experimental (check browser support)
✓
X-Content-Type-Options
✗
Content-Security-Policy
✓
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Build

1 JS files
0 CSS files
2 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.