Kustiq
Profile a company free
Tech stack directory132 tracked · 23 categories

Look up any B2B company’s tech stack.

Browse 132 technologies across 23 categories, or profile any company free to see what it runs.

Kustiq detects 132 technologies on 3,021 cached B2B companies, with verified contacts and buying signals on each, in 60s, from $0.20.

Per-company detection, not crawl exportsVerified at runtime, not last-quarter snapshotPay per result, not per seat
Profile a company freeBrowse categories ↓
1 / week no signup3 / week with a free accountSMTP-verified contactsCSV + HubSpot sync
Technologies tracked
132
across 23 categories
Cached companies
3,021
full profiles, refreshed on view
Categories
23
analytics, frameworks, payments
Top tech
WordPress
78 cached companies

Refreshed hourly from the cache.

All technologies, by category

Top-cached first within each group. Tiles with no cached companies yet collapse under “+N emerging” and stay indexable via sitemap.

23 categories · sorted by company count

Don't see your CMS, framework, or analytics tool?

Profile any site free. The pipeline runs the same fingerprint engine on demand and lists every detected technology in 60s.

Profile a company free

Privacy

#privacy
1 cached · 10 companies
CookiebotTop10
e.g.dinnerbooking.comallsorter.comadact.me
+2 emerging in Privacy, no cached companies yet
CookieYesOneTrust

Media

#media
1 cached · 7 companies
VimeoTop7
e.g.dinnerbooking.comallsorter.cominsense.pro
+3 emerging in Media, no cached companies yet
LoomWistiaYouTube Embed

You know the company, not the tech.

Paste a domain and Kustiq returns the full stack, verified contacts, and the buying signal that fired most recently.

Profile a company free

Building a list, not researching one company?

Sign in for 3 profiles a week, or pay per result from $0.20 to $0.30. Same fingerprint engine, same verified contacts, same 60s.

See pricing

Security

#security
2 cached · 4 companies
RecaptchaTop2
e.g.bubble.ioomnipack.com
hCaptcha2
e.g.elevenlabs.ioiproyal.com
+1 emerging in Security, no cached companies yet
Turnstile

Payments

#payments
2 cached · 2 companies
PaddleTop1
e.g.paddle.com
LemonSqueezy1
e.g.anotherwrapper.com
+4 emerging in Payments, no cached companies yet
BraintreeChargebeePayPalStripe

Auth

#auth
1 cached · 1 companies
FirebaseTop1
e.g.draftkick.com
+4 emerging in Auth, no cached companies yet
Auth0ClerkGoogle Sign-InSupabase

CRM

#crm
1 cached · 1 companies
SalesforceTop1
e.g.adtechlist.io

CSS

#css
1 cached · 1 companies
Chakra UITop1
e.g.easy-feedback.com
+3 emerging in CSS, no cached companies yet
BootstrapMaterial UITailwind CSS

Hosting

#hosting
1 cached · 1 companies
GitHub PagesTop1
e.g.github.com
+8 emerging in Hosting, no cached companies yet
DigitalOceanFly.ioGoogle CloudHerokuNetlifyRailwayRenderVercel

CDN

#cdn
0 cached

Cache warming for cdn. Profile any company free.

+4 emerging in CDN, no cached companies yet
AkamaiAWS CloudFrontCloudflareFastly

CDP

#cdp
0 cached

Cache warming for cdp. Profile any company free.

+1 emerging in CDP, no cached companies yet
Segment CDP

Fonts

#fonts
0 cached

Cache warming for fonts. Profile any company free.

+2 emerging in Fonts, no cached companies yet
Google FontsTypekit / Adobe Fonts

Infrastructure

#infrastructure
0 cached

Cache warming for infrastructure. Profile any company free.

+5 emerging in Infrastructure, no cached companies yet
ApacheASP.NETnginxNode.jsPHP

Monitoring

#monitoring
0 cached

Cache warming for monitoring. Profile any company free.

+5 emerging in Monitoring, no cached companies yet
BugsnagDatadog RUMNew RelicRollbarSentry

Social

#social
0 cached

Cache warming for social. Profile any company free.

+3 emerging in Social, no cached companies yet
Facebook PixelLinkedIn InsightTwitter Pixel

Status

#status
0 cached

Cache warming for status. Profile any company free.

+1 emerging in Status, no cached companies yet
Statuspage

Testing

#testing
0 cached

Cache warming for testing. Profile any company free.

+4 emerging in Testing, no cached companies yet
Google OptimizeLaunchDarklyOptimizelyVWO

Same dataset, three pricing shapes.

Per-contact cost is what one verified contact actually costs at typical use. Kustiq brackets the full span: list-builder workloads sit near the floor, single-account research sits near the ceiling.

ToolPer-contact costPer-seat feeVerification quality
ZoomInfo$1.20 to $3.40$15,000/yr minHQ-stale, no SMTP
Apollo$0.80 to $1.60$59/seat/moEmail pattern guess
Kustiq$0.15 (Pro) to $0.30 (entry) · no per-seat fee · SMTP-verified at request time
vs ZoomInfo, line by line →

What a profile actually costs.

Tech detection is part of every cached profile, not a separate charge. The numbers below are the total: stack, contacts, signals, exports.

Free $0
1 / week no signup · 3 / week with account
Insight $39 / mo
200 credits ($0.20 each) · CSV export · HubSpot sync
Pro $119 / mo
800 credits ($0.15 each) · API · alerting
Extra credits
$0.30 entry · $0.20 volume floor · $0.15 on Pro
Full pricing breakdown →

Questions about tech detection.

How does Kustiq detect a company's tech stack?
Detection is deterministic and signature-based. The pipeline fetches the public surface of a domain, runs script-tag, header, DOM-attribute, and runtime fingerprints, and emits a confidence-scored list of technologies. Not header sniffing, not third-party stack databases, not a last-quarter snapshot. The fingerprint runs at profile time against the live site.
How fresh is the data on this hub?
Each tech leaf shows companies sorted by cache freshness, with the median age of the cached set printed at the top of the section. Across React, Stripe, and Next.js that median sits at 2 to 6 hours. Profiles older than 30 days re-run automatically when a visitor lands on them.
Can I export a list of every company running a given tech?
Insight ($39/mo) exports up to 200 profiles per month as CSV, with the stack column included. Pro adds HubSpot sync. Extra credits cover ad-hoc list builds without a seat fee: $0.30 entry, $0.20 at the volume floor, $0.15 effective on Pro.
What does a full Kustiq profile include beyond the stack?
Stack detection is one column. The full profile adds SMTP-verified contacts, named decision-makers rather than generic inboxes. It adds the most recent buying signal: funding, hiring, press, or product launch. Returned in 60s. Free tier is 1 profile a week anonymous, 3 with an account. Try one.
Detection on demand

60s is all it takes to learn what a company runs.

Paste a domain. Kustiq returns the stack, contacts, and the buying signal that fired most recently. From $0.20. No seat fee.

Profile a company free