Visisto is the website growth system built for developers — with signed webhooks and replay endpoints for zero data loss, a full REST API, allowed domains for snippet security, guided installation for 50+ platforms, and custom sender domains with automatic SPF, DKIM, and DMARC configuration.
Works natively with the tools you already use
Unsigned webhooks lose events. APIs are undocumented and rate-throttled. Platform support stops at Shopify and WordPress. And anyone can copy your snippet. Developer experience is an afterthought.
APIs that break silently
Most marketing tools have undocumented APIs, unsigned webhooks, and no replay. When events fail, you lose contacts and revenue — and don't know until it's too late.
8-15% event loss with unsigned webhooks
Platform lock-in
Klaviyo works on Shopify. OptinMonster works on WordPress. Neither has proper support for custom React apps, Next.js, or headless architectures.
Limited to 2-3 platforms
No snippet security
Anyone can copy your popup script and run it on their site. Your contacts, your widgets, your costs — used by someone else. No way to lock it down.
Zero protection on most tools
Every webhook is signed with HMAC-SHA256 and includes idempotency keys. Missed events are replayable for 30 days. The REST API covers contacts, widgets, sequences, broadcasts, and analytics — versioned, documented, and rate-limited. Build anything on top of Visisto.
Signed webhooks, replay endpoints, REST API, 50+ platforms, allowed domains, custom sender domains, event system, and 100+ native integrations — all built in.
Every webhook is signed with HMAC-SHA256. Verify authenticity, prevent replay attacks, and ensure data integrity. Full event payloads with timestamps.
Missed an event? Replay any webhook from the last 30 days. Zero data loss, zero manual recovery. One-click replay from the dashboard or via API.
Full CRUD API for contacts, widgets, sequences, broadcasts, and analytics. Rate-limited, versioned, and documented. Available on Growth and Agency plans.
Guided install for Shopify, WordPress, Webflow, Wix, Squarespace, Next.js, React, Vue, Angular, and 40+ more. One script tag — works with any site that supports custom HTML.
Lock your Visisto snippet to specific domains. Only authorised websites can load your widgets and capture contacts. Prevent unauthorised usage.
Send from your own domain with automatic SPF, DKIM, and DMARC configuration. 99.8% delivery rate. Your brand, your domain, your reputation.
Subscribe to contact.created, email.opened, sequence.completed, widget.submitted, and 20+ event types. Build real-time integrations without polling.
Shopify, Stripe, HubSpot, Calendly, Slack, and 95+ more. Direct API connections with signed webhooks — no Zapier needed.
No code. No middleware. No learning curve. Set up once and let Visisto handle the rest.
Guided installation for Shopify, WordPress, Webflow, Wix, Next.js, React, and 50+ other platforms. One script tag in your site header — live in under 2 minutes.
Full REST API for contacts, widgets, sequences, and analytics. Signed webhooks with idempotency keys and replay endpoints for every event.
Lock your snippet to specific domains with allowed domains. Configure custom sender domains with automatic SPF, DKIM, and DMARC for 99.8% delivery.
Visisto includes signed webhooks, full API, allowed domains, and 50+ platform support — features that competitors lock behind enterprise plans or don't offer at all.
| Feature |  | Your stack |
|---|---|---|
| Developer features | ||
Webhooks | ✓Signed (HMAC-SHA256) with replay | Unsigned, no replay (Klaviyo) |
REST API | ✓Full CRUD, versioned, documented | Limited API, rate-throttled |
Allowed domains | ✓Lock snippet to authorised domains | ✗Not available |
Platform support | ✓50+ platforms with guided install | 2-3 platforms (Shopify, WordPress) |
Event system | ✓20+ event types, real-time | Basic events via Zapier (£49/mo) |
Custom sender domains | ✓Auto SPF/DKIM/DMARC, 99.8% delivery | Manual DNS setup, Pro plan only |
| Pricing | ||
API access | ✓Growth plan (£59/mo) | Enterprise plan ($299+/mo) |
Webhooks included | ✓All plans | Paid plans only |
Per-contact fees | ✓Never — flat pricing | £0.13/contact (Klaviyo) |
Visisto replaces your entire stack — from £0/month
No Zapier. No per-contact fees. No maintenance overhead. Cancel anytime.
active users and still counting
email delivery rate
average capture rate
free to start
The free plan includes signed webhooks, 50+ platform support, allowed domains, and 15,000 emails/month. Upgrade to Growth (£59/mo) for REST API access, custom sender domains, and team seats.\n\nNo per-contact fees on any plan. Build on Visisto without growing your bill.
No time limit · No card · No OptinMonster subscription.
Still have questions? We answer every message personally — usually within 2 hours.
Yes. Visisto provides a full REST API (available on Growth and Agency plans) for contacts, widgets, sequences, broadcasts, and analytics. The API is versioned, documented, and rate-limited.
Visisto sends signed webhooks (HMAC-SHA256) for 20+ event types including contact.created, email.opened, widget.submitted, and sequence.completed. Each payload includes idempotency keys and timestamps. Missed events can be replayed from the dashboard or API.
Allowed domains let you lock your Visisto snippet to specific domains. Only websites on your allowed list can load your widgets and capture contacts — preventing unauthorised usage of your account.
Visisto provides guided installation for Shopify, WordPress, Webflow, Wix, Squarespace, Next.js, React, Vue, Angular, and 40+ other platforms. The install is one script tag in your site header — works with any website that supports custom HTML.
Add your domain in the Visisto dashboard and follow the guided DNS setup. Visisto automatically configures SPF, DKIM, and DMARC records. Custom sender domains improve deliverability and are available on all plans.
Yes. Visisto stores all webhook events for 30 days. Replay any event from the dashboard with one click or via the API. Zero data loss — even if your endpoint was temporarily down.
Start today
No credit card. No time limit. Your first spin wheel widget live in 10 minutes. Free forever — upgrade only when you're ready.
Start free — no credit cardNo credit card · No time limit · GDPR compliant · Cancel anytime
Start free in 2 minutes. No credit card. No Zapier. 15000 emails/month free. No limits on contact capture.