Wappalyzer

Wappalyzer turns public signals from websites into technographic data for prospecting, record enrichment, and monitoring market changes. It detects technologies from HTML, scripts, headers, cookies, and other fingerprints, covering thousands of technologies across millions of websites. Users can analyze as many as 100,000 URLs in a CSV or TXT upload. APIs cover technology lookup, lead lists, subdomain discovery, and email verification. Live results count as five lookups each; cached results are verified within the last 30 days. Tools and integrations include browser extensions, CRM and email services, automation platforms, and an iPhone app. Basic browser-extension detection takes place locally, and settings allow users to disable sharing of limited website-level data. The free plan includes 50 technology lookups and 50 email verifications per month, five website alerts, and sample lead lists. Pro costs $250 a month for one user. Plan-included API credits expire after 60 days, while bundle-purchased credits expire after 365 days. Wappalyzer's terms restrict sharing or reselling its data without written permission.

Wappalyzer offers multiple ways to identify website technologies and use those signals in prospecting or monitoring. Review credit expiry and data-use restrictions before building a workflow around its results.

Wappalyzer is aimed at sales, marketing, operations, strategy, partnerships, and security teams that use technology signals in their work.

Overview

Wappalyzer converts public clues about website infrastructure into technographic data for prospecting, record enrichment and market monitoring. It is best suited to teams that can use technology signals to guide sales, research or security work; occasional site lookups may not justify the cost of its paid plans.

Its coverage spans thousands of technologies across millions of websites, with detection based on signals such as HTML, scripts, headers and cookies. Founded in 2008 and headquartered in Australia, Wappalyzer combines that core lookup with lead and contact tools.

Key features

Technology lookup and bulk analysis

Teams can check a website individually or upload a CSV or TXT file containing up to 100,000 URLs. That scale makes Wappalyzer useful for broad market scans, but live results count as five lookups each. Cached results are verified within the last 30 days, so they can stretch lookup allowances when the freshest result is not essential.

Prospecting tools and APIs

Technology-targeted lead lists, company and people search, intent signals, email finding, phone numbers and CRM sync make Wappalyzer more than a site-identification tool. Its APIs cover technology lookup, lead lists, subdomain discovery and email verification. This breadth is valuable for teams incorporating technographic signals into prospecting; it is harder to justify if the need is limited to occasional identification.

Extensions, integrations and MCP

Official apps include extensions for Chrome, Firefox, Edge and Safari, plus connections to Salesforce, HubSpot, Pipedrive, Gmail, Pabbly, Zapier and Make, as well as an iPhone app. The hosted MCP server supports website lookup, subdomain discovery and credit-balance checks, but is read-only. The browser extension performs basic detection locally, and settings can disable sharing of limited website-level data.

Credits, privacy and data use

API credits included with plans expire after 60 days; credits bought in bundles last 365 days. Wappalyzer says it uses reasonable technical and organizational measures designed to protect personal information. Its terms prohibit sublicensing, reselling, publishing, embedding data in a customer-facing product or otherwise sharing it without written permission, a material constraint for agencies and product builders.

Pricing

Wappalyzer is freemium, with paid plans billed monthly and starting at $250 a month. The free tier is useful for small-scale evaluation, but its monthly caps are modest for ongoing prospecting.

• Free — free: 50 technology lookups per month, 50 email verifications per month, five website alerts and free sample lead lists. A reasonable starting point for occasional checks, not a sustained high-volume workflow.
• Pro — $250 a month, billed monthly: one user, two lead-list technology targets, 5,000 technology lookups and 5,000 email verifications. It suits a single prospecting user, but provides no stated API-credit allotment and keeps target selection narrow.
• Business — $450 a month, billed monthly: five users, unlimited lead-list technology targets, 20,000 technology lookups, 20,000 email verifications and 20,000 API credits. This is the more practical step up for a small team needing broader targeting and API use.
• Enterprise — $850 a month, billed monthly: 25 or more users, unlimited lead-list technology targets, 200,000 or more technology lookups, 200,000 or more email verifications, 200,000 or more API credits, dedicated support and custom terms. It is aimed at larger operations that need scale and support.

A free trial is available. Credit expiry matters when demand is uneven: plan-included API credits expire after 60 days, unlike bundle-purchased credits, which expire after 365 days.

Platforms

Wappalyzer supports Android, iOS, web, APIs, browser extensions and self-hosted use. That mix accommodates both in-browser research and workflow or infrastructure integrations.

Who it's for

Wappalyzer is built for sales, marketing, operations, strategy, partnerships and security teams that can act on technology signals. Its broad lookup and prospecting tools make the strongest case for teams doing repeat research or integrating technology data into lead workflows. It is a weaker fit for individuals seeking only occasional lookups, or for businesses that need to redistribute the resulting data without permission.

Pros and cons

• Pros: Broad technology coverage and bulk analysis of up to 100,000 URLs support market scans at scale.
• Pros: Lead tools, APIs and CRM integrations connect technographic signals to prospecting workflows.
• Pros: Local basic extension detection and an option to disable sharing of limited website-level data give users some control over extension data sharing.
• Cons: The free plan's 50 monthly technology lookups and 50 email verifications limit sustained use.
• Cons: Live results consume five lookups each, and included API credits expire after 60 days.
• Cons: Restrictions on sharing Wappalyzer data can rule it out for resale, customer-facing products or other redistribution without written permission.

Alternatives

BuiltWith is a direct alternative for readers focused on technology lookups: its free plan includes 10 detailed lookups per day, while Advanced costs $144 a year with a one-year minimum and unlimited detailed lookups.

Coresignal may suit teams seeking a credit-based API or web data option, with a free tier offering 2,000 credits, 5 req/s, a 7-day trial and email support; its Mini plan is $49 a month.

Datagma is another freemium API, extension and web option for contact data; its free plan includes three phones and 90 emails per month, one seat, API access and WhatsApp integration.

Mattermark is a paid web and iOS alternative.

People Data Labs is an API-based freemium alternative with tiered IP Enrichment API credit plans.

Clay may fit teams wanting a broader lead-enrichment workflow: its free plan includes 500 actions and 100 data credits per month, unlimited seats and tables, and up to 200 rows per table.

Cleanlist offers a free API, extension and web plan with 30 monthly credits, one seat, up to 100 leads per list, and 30 verified emails or three phone numbers.

Enrichabl is a freemium API and web alternative with a free platform tier for 100 leads.

Readers comparing adjacent categories can also browse Lead Enrichment Software, Account Enrichment Software, Technographic Data Software, Company Databases and Sales Prospecting Software.

Verdict

Choose Wappalyzer if your team needs technology-based prospecting or monitoring at meaningful volume and can put its integrations, APIs and lead tools to work. Its coverage and workflow breadth are the main reasons to pay; its lookup economics, credit expiry and strict data-sharing limits are good reasons to look elsewhere when usage is light or redistribution is central.