Wappalyzer

Wappalyzer

Outbound & Prospecting
Qualify an account by what it already runs, before anyone writes the first line.
ACCESS
Free account
PRICE
Free, then $250/mo
HOST
Wappalyzer
CATEGORY
Market & stack intel
Last updated
August 4, 2026

Preview

Wappalyzer

What it is.

Check what a prospect already runs and the email half writes itself. Wappalyzer identifies the technologies behind a website: CMS, analytics, payment processing, marketing automation, chat widget.

A free account gets 50 technology lookups every month, plus 50 email verifications, 5 website alerts and sample lead lists. Paid plans start at $250 a month and add list building across technologies, CRM enrichment and API credits.

What you get.

  • 50 technology lookups a month, plus 50 email verifications.
  • The technology your best customers share, which is usually your cleanest ICP filter.
  • 5 website alerts, so a target account changing tools reaches you.
  • A browser extension that reads a stack during research without spending a lookup.
HOW TO USE IT

How to set it up.

1

Create the free account, then run a lookup on your best five customers and note what they share.

2

Turn that shared technology into your qualification filter, since it is the pattern your product already fits.

3

Set website alerts on your most important accounts, using the 5 the free account allows.

4

Install the extension so a stack check happens while you research, without spending a lookup.

5

Track lookups through the month, because 50 goes quickly once a team is using it.

Pricing Plans

Free

$0

50 technology lookups and 50 email verifications a month, 5 website alerts

Pro

$250

a month, one technology target for list building, 5,000 API credits

Use cases

Qualify before writing

Look up the account and open with the tool they already run.

Find your cleanest ICP filter

Check what your best customers share in their stack and score new accounts on it.

Watch for a stack change

Set an alert on a target account so a swap becomes a reason to call.

Best for

Qualifying an inbound lead

One lookup tells you whether the account runs the stack your product fits, before a call is booked.

Finding your integration pattern

Check your best customers and the shared technology is usually the cleanest ICP filter you have.

Watching a competitor displacement

Website alerts flag when a target account changes a tool, which is the window when switching gets discussed.

Open the tool

Opens on Google in a new tab.

Open the Tool

Questions about Wappalyzer

What does a free account include?
What does the first paid plan cost?
Do unused API credits carry over?

Questions about Outbound & Prospecting

Is technology data a good targeting signal?
How do you find an ICP filter that holds?
Before you start
  • A free account, which is what the monthly lookup allowance attaches to.
  • A list of your best customers to run first, so the pattern has something to emerge from.
Strengths
  • 50 technology lookups and 50 email verifications a month on a free account, plus 5 website alerts.
  • The browser extension reads a stack during normal research without spending an allowance.
  • Sample lead lists let you judge data quality before committing to $250 a month.
Limitations
  • 50 lookups a month is a research allowance and not a list-building one.
  • List building across technologies starts on the Pro plan at $250 a month.
  • API credits included in paid plans expire after 60 days, so buying ahead of a project wastes them.
Skip this if
  • You already have a technographic feed inside your CRM, so the lookups are duplicated work.
Ideal for
  • Outbound teams
  • GTM engineers
  • Partnership managers

Got the free stack.
Need the engine?

Free tools give you the data. We turn it into pipeline for 300+ B2B tech companies, across organic search and paid media.