Wappalyzer
Rank #5
Visit Website
Intelligence
Freemium: Available
Best for: SMBs, Enterprise
Wappalyzer is a lead generation tool for finding website technologies and contact info.
Competitive Intelligence
At a glance
4.7
G2 Rating
57
G2 Review Count
100,000+
User Count
3
Playbooks Count
Wappalyzer identifies the technologies websites use and turns that into technographic lead lists and enrichment. It's popular for quick tech-stack checks via its browser extension and for building targeted prospect lists
What is Wappalyzer?
Klue is a competitive enablement platform that collects competitor intelligence from millions of web, news, social, and review sources and uses AI to surface the signals that matter, then turns them into sales-ready battlecards. Built sales-first, its core deliverable is the battlecard tightly integrated with Salesforce and seller workflows so reps get the right competitive positioning at the moment of the deal rather than hunting for it. Klue also runs structured win-loss analysis, capturing why deals are won and lost so product marketing and CI teams can sharpen messaging over time.The platform is owned day-to-day by competitive intelligence, product marketing, and sales enablement teams, and distributes intel through Salesforce, email, web, mobile, Microsoft Teams, and Gong. Its newer AI layer "Ask Klue" and the Compete Agent lets reps ask natural-language questions such as "what's their weakness?" or "can they do X?" and get instant, citation-backed answers, even for competitors without a dedicated card. Klue measures revenue impact, battlecard consumption, and competitive win rates, and holds a 4.8/5 G2 rating  the highest in its category across 500+ reviews.
Key Features
Instant Tech Detection: Identifies a site's CMS, e-commerce, payment, and analytics stack via browser extension or API.
Lead Lists: Generates lists of companies using specific technologies, with company and contact details.
Website Monitoring: Alerts you when a tracked site's technology stack changes.
Email Verification & Enrichment: Validates contact emails and enriches records to support outreach.
CRM Integrations & API: Syncs with Salesforce, HubSpot, and Pipedrive and automates lookups through the API.
Playbooks using Wappalyzer
Technographic Prospecting Playbook
TECHNOGRAPHIC
Tech-Stack Enrichment Playbook
ENRICHMENT
Competitor Customer Targeting Playbook
COMPETITIVE
Lead List Building Playbook
OUTBOUND
CRM Data Append Playbook
DATA
Pairs well with
These tools are most commonly used alongside Instantly in GTM workflows:
No items found.
Campaigns You Can Run
Website Visitor Follow-Up
RB2B identifies visitors, Clay enriches, Instantly sends personalized email within minutes of the visit.
LinkedIn Engagement to Email
Jungler captures ICP engaging with your posts, Clay enriches with email, Instantly sends a warm sequence.
New Funding Round Outreach
Track funding signals via TheirStack, enrich in Clay, and trigger a congratulatory email sequence in Instantly.
Job Change Champion Tracking
User Gems detects when past customers move to new companies. Instantly sends a reconnection sequence.
Competitor Tech Stack Swap
Their Stack identifies companies dropping a competitor tool. Clay enriches contacts. Instantly sends a switch offer.
Campaigns You Can Run
SMBs
Mid-market
Enterprise
Agencies
Top Alternatives
No items found.
Teams choose Wappalyzer for a few key reasons:
Fast tech checks
The browser extension reveals any site's stack instantly.
Lead generation
Turn technographics into exportable prospect lists.
Enrichment and API
Append tech data at scale via API.
Well-rated
A 4.7/5 G2 rating reflects reliability
Frequently Asked Questions
What is Wappalyzer?

A technographics tool and browser extension that identifies the technologies a website uses.

Lead generation

A technographics tool and browser extension that identifies the technologies a website uses.

Who is it for?

Sales and research teams doing quick tech-stack checks and building targeted prospect lists.

Well-rated

A free extension with limited lookups; paid plans run ~$250 (Pro), ~$450 (Business), and ~$850+ (Enterprise) monthly.

Free Cold Email
Get a free deliverability check for your outbound setup. We'll analyze your SPF, DKIM, DMARC, and inbox placement so you know exactly where you stand before sending.
Setup Complexity
Simple
Most teams are live within a day using the no-code setup wizard.
Pricing
Free
$0
Browser extension with limited monthly lookups
Pro
~$250/month
Lead lists and technology reports
View full pricing page
Common Stack Combination
Data
Clay + FullEnrich
EMAIL
Instantly
Linkedin
HeyReach
signals
RB2B + Jungler
crm
HubSpot or Attio