← Back to browse

PassPrep

The only AI-powered platform that marks your Edutest written expression. Free practice tests, topic drills, and detailed score breakdowns.

Education
Australia Estimated origin: Australia

Added August 27, 2026 · Last analysed August 27, 2026 · via

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 27 August 2026; the live site may have changed since.

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

Launched on Product Hunt on August 27, 2026. The site is hosted on Vercel and served through Cloudflare. Our crawler found 17 technologies on this site, covering advertising, analytics, security, and CDN. The stack includes Next.js, React, and Tailwind CSS.

It's also on one of the most common stacks we track, shared by 14,274 launches.

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

Vibe Score 43 · Some 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 (17) · Indie stack

Infrastructure
CDN Cloudflare
DNS Crazy Domains DNS
Hosting Vercel
Security Cloudflare Bot Management
HSTS
Email
Business email Titan Email (2)
Transactional email Resend
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (5)
Analytics & Marketing
Advertising Google Ads (3)
TikTok Pixel (4)
Analytics Google Analytics (3)
PostHog (3)
SEO Google Search Console
Tag management Google Tag Manager (3)
Business Tools
Sales intelligence Apollo.io (2)

Infrastructure

Network
AS16509 · US
DNS
Crazy Domains 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 9 Aug 2026 to 7 Nov 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 p=none None (p=none). Monitoring only.
?
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 (18)

Cookies (7)
NameLifetimeDetected as
ph_phc_n5WiftgmwkAvgY29jDrYpDX9L77RbapPxwPWuGgwfAse_posthog 12mo -
ttcsid 2mo TikTok Pixel
ttcsid_D8P6UCBC77U8IPSBHTT0 2mo TikTok Pixel
_gcl_au 2mo Google Ads
_ttp 2mo TikTok Pixel
_tt_enable_cookie 2mo TikTok Pixel
__cf_bm < 1h Cloudflare
Local storage (5)
KeySizeDetected as
6a265bae71023e0018749b2f_canTrack 41 B Apollo.io
6a265bae71023e0018749b2f_eventQueue 2 B Apollo.io
apolloAnonId 36 B Apollo.io
ph_phc_n5WiftgmwkAvgY29jDrYpDX9L77RbapPxwPWuGgwfAse_posthog 1.4 KB PostHog
_gcl_ls 277 B Google Ads
Session storage (6)
KeySizeDetected as
ph_phc_n5WiftgmwkAvgY29jDrYpDX9L77RbapPxwPWuGgwfAse_posthog 388 B PostHog
ph_phc_n5WiftgmwkAvgY29jDrYpDX9L77RbapPxwPWuGgwfAse_primary_window_exists 4 B PostHog
ph_phc_n5WiftgmwkAvgY29jDrYpDX9L77RbapPxwPWuGgwfAse_window_id 38 B PostHog
tt_appInfo 17 B TikTok Pixel
tt_pixel_session_index 20 B TikTok Pixel
tt_sessionId 60 B TikTok Pixel

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?

592 ms Server response
26% Faster than peers
688 ms Largest contentful paint
0.00 Cumulative layout shift
835 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 copy signals +5
AI onboarding signals +5
AI writing signals +5
AI iconography signals +3
AI stack signals +10
AI layout signals +5
Default scaffold favicon +10

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 (37 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
86% unique

Security Headers (1/6)

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

Build

Code splitting
27 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.