Wappalyzer indentifies technologies on websites.
Note: The wappalyzer-core package provides a low-level API without dependencies.
$ npm i -g wappalyzerwappalyzer <url> [options]
-b, --batch-size=... Process links in batches
-d, --debug Output debug messages
-t, --delay=ms Wait for ms milliseconds between requests
-h, --help This text
-H, --header Extra header to send with requests
--html-max-cols=... Limit the number of HTML characters per line processed
--html-max-rows=... Limit the number of HTML lines processed
-D, --max-depth=... Don't analyse pages more than num levels deep
-m, --max-urls=... Exit when num URLs have been analysed
-w, --max-wait=... Wait no more than ms milliseconds for page resources to load
-p, --probe=[basic|full] Perform a deeper scan by performing additional requests and inspecting DNS records
-P, --pretty Pretty-print JSON output
--proxy=... Proxy URL, e.g. 'http://user:pass@proxy:8080'
-r, --recursive Follow links on pages (crawler)
-a, --user-agent=... Set the user agent string
-n, --no-scripts Disabled JavaScript on web pages
-N, --no-redirect Disable cross-domain redirects
-e, --extended Output additional information
--local-storage=... JSON object to use as local storage
--session-storage=... JSON object to use as session storage
--defer=ms Defer scan for ms milliseconds after page load
$ npm i wappalyzerconst Wappalyzer = require('wappalyzer')
const url = 'https://www.wappalyzer.com'
const options = {
debug: false,
delay: 500,
headers: {},
maxDepth: 3,
maxUrls: 10,
maxWait: 5000,
recursive: true,
probe: true,
proxy: false,
userAgent: 'Wappalyzer',
htmlMaxCols: 2000,
htmlMaxRows: 2000,
noScripts: false,
noRedirect: false,
};
const wappalyzer = new Wappalyzer(options)
;(async function() {
try {
await wappalyzer.init()
// Optionally set additional request headers
const headers = {}
// Optionally set local and/or session storage
const storage = {
local: {}
session: {}
}
const site = await wappalyzer.open(url, headers, storage)
// Optionally capture and output errors
site.on('error', console.error)
const results = await site.analyze()
console.log(JSON.stringify(results, null, 2))
} catch (error) {
console.error(error)
}
await wappalyzer.destroy()
})()Multiple URLs can be processed in parallel:
const Wappalyzer = require('wappalyzer');
const urls = ['https://www.wappalyzer.com', 'https://www.example.com']
const wappalyzer = new Wappalyzer()
;(async function() {
try {
await wappalyzer.init()
const results = await Promise.all(
urls.map(async (url) => {
const site = await wappalyzer.open(url)
const results = await site.analyze()
return { url, results }
})
)
console.log(JSON.stringify(results, null, 2))
} catch (error) {
console.error(error)
}
await wappalyzer.destroy()
})()Listen to events with site.on(eventName, callback). Use the page parameter to access the Puppeteer page instance (reference).
| Event | Parameters | Description |
|---|---|---|
log |
message, source |
Debug messages |
error |
message, source |
Error messages |
request |
page, request |
Emitted at the start of a request |
response |
page, request |
Emitted upon receiving a server response |
goto |
page, url, html, cookies, scriptsSrc, scripts, meta, js, language links |
Emitted after a page has been analysed |
analyze |
urls, technologies, meta |
Emitted when the site has been analysed |