Flashbang

Show HN: Flashbang – DuckDuckGo bangs resolved locally with a Service Worker

Added July 14, 2026 · Last analysed July 14, 2026 · via Hacker News · 75% unique tagline

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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 14 July 2026; the live site may have changed since.

Flashbang still has work before launch. Worth fixing first: missing Permissions-Policy and Strict-Transport-Security, incomplete legal pages, and no sitemap.

Launched on Hacker News on July 14, 2026. The site is served through Cloudflare. The crawl picked up 2 technologies on this site, covering CDN and DNS providers. The stack includes Cloudflare and Cloudflare DNS.

For context, it's tighter on security headers than most Hacker News launches.

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

3.5

StackScope Score

Poor

17/100 Launch Readiness

Needs work

4/6 Security Headers

Decent

0/3 Legal

Missing

1/2 Crawl files

Partial

100/100 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 (2)

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

AS13335 · US

DNS

Cloudflare DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

Green hosting

Green hosted

Host runs on renewable energy. Data from The Green Web Foundation.

SSL Certificate

Let's Encrypt

Valid 16 Jun 2026 to 14 Sep 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 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 (0)

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

Readiness Breakdown How?

✓ Responsive viewport meta tag

- Custom title and meta description

- Open Graph tags (title, image, description)

- Canonical URL declared

- Twitter card meta tags

- Favicon present

- Semantic HTML (nav, main, article)

Performance How?

49 ms Server response

99% Faster than peers

0.00 Cumulative layout shift

295 KB Page weight

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 not detected

? Terms of Service not detected

Detection works best on English language sites.

Security Headers (4/6)

✓

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

0 JS files

0 CSS files

0 Third-party domains

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 If a technology shown here is wrong or out of date, email [email protected] and we'll review it.