What is Imperva's bot-detection challenge?

Imperva (formerly Incapsula) issues a JS-evaluated challenge plus a cookie-based session token. Bots that don't evaluate the JS fail the challenge silently. CaptchaSonic runs the challenge server-side and returns the resulting visit-id cookie.

Does CaptchaSonic handle the Imperva captcha widget?

Yes — both the silent JS challenge and the rare visible captcha fallback are supported. The same task type covers both surfaces; we detect which is active and route accordingly.

How long does an Imperva session stay valid?

Imperva visit cookies typically remain valid for around 1 hour per origin and fingerprint. Cache across requests in that window — re-solving on every call is wasted spend.

Incapsula bot-shield

Imperva Bypass

Bypass Imperva (Incapsula) bot-detection challenges with CaptchaSonic. AI solver returns the validated visit cookie so headless clients pass the bot-shield layer in one round trip.

Start Building Read Documentation

// CaptchaSonic — Imperva (Incapsula) solver
const sonic = new CaptchaSonic('YOUR_API_KEY');

const result = await sonic.solve({
  type: 'ImpervaTask',
  websiteURL: 'https://target.example.com/protected',
  userAgent: 'Mozilla/5.0 (...)',
  proxy: { type: 'http', host: '...', port: 8080 }
});

// Set the visit-id cookie on subsequent requests.
document.cookie = result.cookie;

Why use Sonic for Incapsula bot-shield?

Built for speed, reliability, and easy integration.

JS challenge + cookie return

Runs the Imperva JS challenge server-side and returns the visit-id cookie.

Captcha fallback handled

Solves the visible captcha variant when Imperva escalates the challenge.

Proxy fingerprint match

Solve from inside your egress IP so the cookie survives Imperva's rate-limit signals.

Built for Developers

Choose your language and start solving CAPTCHAs in seconds

Type-safe

Async/Await

Error Handling

View Full Documentation

index.js

import { CaptchaSonic } from 'captchasonic'

const client = new CaptchaSonic({
  apiKey: 'your_api_key'
})

// Solve reCAPTCHA
const result = await client.solve({
  type: 'recaptcha_v2',
  sitekey: 'site_key_here',
  pageurl: 'https://example.com'
})

console.log(result.solution)

99.9%

Success Rate

<0.5s

Avg Response

99.9%

Uptime

10k+

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