← Back to browse

Checksum AI

The Checksum platform generates, runs, and heals your test suite automatically. Full E2E and API coverage with no manual maintenance.

Developer Tools

Added August 20, 2026 · Last analysed August 20, 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 20 August 2026; the live site may have changed since.

Checksum AI looks production-ready overall, with a thorough launch checklist, well-configured email security, and fast page loads. Main gaps: missing several security headers, incomplete legal pages, and tracking cookies set before any opt-in.

Launched on Product Hunt on August 20, 2026. The site is served through Cloudflare, with a domain registered in 2022. We've detected 26 technologies on this site, covering javascript library, analytics, package cdn, and advertising. The stack includes Apollo.io, Cloudflare, and Cloudflare Bot Management.

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

Vibe Score 28 · 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 (26)

Infrastructure
CDN Cloudflare (2)
DNS Cloudflare DNS
Security Cloudflare Bot Management
HSTS
Email
Business email Google Workspace (3)
Email marketing HubSpot (3)
Build & Framework
Font Google Fonts
JavaScript library GSAP (2)
jQuery
Swiper (2)
Web Font Loader
Package CDN Google Hosted Libraries
jsDelivr (2)
unpkg
Site builder Webflow (3)
Analytics & Marketing
Advertising Google Ads (3)
Reddit Ads (3)
Analytics Google Analytics (4)
Knock2
PostHog (4)
SEO Google Search Console
LinkedIn (3)
Tag management Google Tag Manager (3)
Business Tools
Chat Crisp (5)
Sales intelligence Apollo.io (2)
RB2B

Infrastructure

Network
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 24 Jun 2026 to 22 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
4.2 years
Registered Jun 2022 · NameCheap, Inc.

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
DMARC p=reject Reject (strict). Strong.
?
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 (39)

Cookies (16)
NameLifetimeDetected as
bcookie 1y LinkedIn
crisp-client%2Fsession%2Ff09d3638-2ac9-4160-a00e-b4ee5de567e2 6mo Crisp
hubspotutk 6mo HubSpot
lidc 1d LinkedIn
li_gc 6mo LinkedIn
penguin_person_id session -
ph_phc_ADQKA7g71Fgh5OOe8mBAu1Ef1mgq0m807A8KWoaZJoh_posthog 1y -
_cfuvid session Cloudflare
_ga 1y Google Analytics
_ga_SBQYW4SJ5H 1y Google Analytics
_gcl_au 3mo Google Ads
_rdt_uuid 3mo Reddit Ads
__cf_bm < 1h Cloudflare
__hssc < 1h HubSpot
__hssrc session HubSpot
__hstc 6mo HubSpot
Local storage (19)
KeySizeDetected as
690bbd0fd154d80011039ce8_canTrack 41 B Apollo.io
690bbd0fd154d80011039ce8_eventQueue 2 B Apollo.io
apolloAnonId 36 B Apollo.io
checksum_ai_browserSessionId 21 B -
checksum_ai_documentReferrer 0 B -
checksum_ai_page 17 B -
checksum_ai_pageHistory 106 B -
checksum_ai_productSlug 11 B -
checksum_ai_productVersion 1 B -
checksum_ai_sessionId 21 B -
checksum_ai_sessionStartTime 62 B -
checksum_ai_sesssionLastUpdate 62 B -
checksum_ai_userAgent 72 B -
checksum_ai_userId 21 B -
crisp-client/session/f09d3638-2ac9-4160-a00e-b4ee5de567e2 44 B Crisp
crisp-client/session/f09d3638-2ac9-4160-a00e-b4ee5de567e2:e 13 B Crisp
penguin_person_id 36 B -
ph_phc_ADQKA7g71Fgh5OOe8mBAu1Ef1mgq0m807A8KWoaZJoh_posthog 1.4 KB PostHog
_gcl_ls 277 B Google Ads
Session storage (4)
KeySizeDetected as
ph_phc_ADQKA7g71Fgh5OOe8mBAu1Ef1mgq0m807A8KWoaZJoh_posthog 389 B PostHog
ph_phc_ADQKA7g71Fgh5OOe8mBAu1Ef1mgq0m807A8KWoaZJoh_primary_window_exists 4 B PostHog
ph_phc_ADQKA7g71Fgh5OOe8mBAu1Ef1mgq0m807A8KWoaZJoh_session_registered_properties 286 B PostHog
ph_phc_ADQKA7g71Fgh5OOe8mBAu1Ef1mgq0m807A8KWoaZJoh_window_id 38 B PostHog

Readiness Breakdown How?

Custom title and meta description
Open Graph tags (title, image, description)
Twitter card meta tags
Responsive viewport meta tag
Favicon present
Semantic HTML (nav, main, article)
- Canonical URL declared

Performance How?

147 ms Server response
81% Faster than peers
6620 ms Largest contentful paint
0.05 Cumulative layout shift
3.0 MB Page weight
251 KB Image weight
24 Third-party domains
0 Console errors
0 Failed requests

30 images: 8 oversized, 15 without width/height, 30 missing alt text

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 palette signals +5
AI writing signals +3
AI iconography signals +5
AI layout 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

Blocks AI crawlers but publishes an llms.txt
llms.txt published
9 AI bots blocked in robots.txt
ai-train = no
search = yes
? ai-input (not declared)
? None advertised

Well-Known Files

robots.txt
sitemap.xml (106 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy-policy
? Terms of Service not detected
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
80% unique

Security Headers (1/6)

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

Build

Code splitting
39 JS files
5 CSS files
24 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.