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Whentofly

Point your AI agent at whentofly and it finds the best fares on Earth — anywhere to anywhere. Free, no signup.

AI

Added July 8, 2026 · Last analysed July 8, 2026 · via Hacker News · 73% unique tagline

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Screenshot of Whentofly

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

Whentofly has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: missing several security headers, tracking cookies set before any opt-in, and incomplete email security.

Launched on Hacker News on July 8, 2026. The site is served through Cloudflare. Our crawler found 8 technologies on this site, covering analytics, CDN, DNS providers, and business email. The stack includes Apple Business Connect, Apple iCloud Mail, and Cloudflare.

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

6.8
StackScope Score
Good
88/100 Launch Readiness
Launch ready
0/6 Security Headers
Poor
3/3* Legal
Complete*
2/2 Crawl files
Complete
93/100 Performance
Fast
Vibe Score 60 · Many 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 (8)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Protocol HTTP/3
Email
Business email Apple iCloud Mail (3)
Email forwarding Namecheap Email Forwarding
Build & Framework
Font Google Fonts
Analytics & Marketing
Analytics PostHog (5)
SEO Apple Business Connect

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
Google Trust Services
Valid 27 Jun 2026 to 25 Sep 2026
Certificate as captured in this snapshot, not a live check.

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
✓
DKIM Detected via known email provider
✗
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 (6)

Cookies (2)
NameLifetimeDetected as
ph_phc_tH7m55DrtdaMty9L44miDBPQJfxijmrtsrLKBSTxEJmp_posthog 1y PostHog
wf_aid 1y -
Local storage (1)
KeySizeDetected as
ph_phc_tH7m55DrtdaMty9L44miDBPQJfxijmrtsrLKBSTxEJmp_posthog 1.4 KB PostHog
Session storage (3)
KeySizeDetected as
ph_phc_tH7m55DrtdaMty9L44miDBPQJfxijmrtsrLKBSTxEJmp_posthog 388 B PostHog
ph_phc_tH7m55DrtdaMty9L44miDBPQJfxijmrtsrLKBSTxEJmp_primary_window_exists 4 B PostHog
ph_phc_tH7m55DrtdaMty9L44miDBPQJfxijmrtsrLKBSTxEJmp_window_id 38 B PostHog

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
✓ Semantic HTML (nav, main, article)
⚠
Meta description is 174 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.
- Favicon present

Performance How?

636 ms Server response
25% Faster than peers
496 ms Largest contentful paint
0.03 Cumulative layout shift
483 KB Page weight
4 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
AI code-structure signals +5
AI typography signals +15
AI CSS signals +15

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

Welcomes AI crawlers
✓ 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 (4 URLs)
✗ security.txt
✓ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/privacy
✓ Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
88% unique
Mentions:
Cookies Data Controller

Security Headers (0/6)

✗
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

✓ Code splitting
6 JS files
1 CSS files
4 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.