The internet moves.
We watch it for you.

Track any website. Get AI summaries, visual diffs, and instant alerts the moment something changes.

Try watching:

Free to start — no credit card

Vercel Changelog·5m ago

New product update shipped

AI
Anthropic Careers·1m ago

3 new job listings added

$
Stripe Pricing·12s ago

Pricing page updated · +20%

AI
OpenAI Blog·2m ago

New post published

Y
Hacker News·1h ago

47 new job postings today

Visual diffs

See exactly what changed

Opplurk keeps every version of a page. When one moves, you get the before and after, line by line — not a vague “something changed” ping.

rivalco.com/pricing6 changes
1 # Rivalco Pricing
2  
3 ## Pro Plan
4-Monthly: $99 / month
4+Monthly: $79 / month
5  
6-Annual: $79/mo · billed $948/yr
6+Annual: $63/mo · billed $756/yr
7  
8-Save 20% with annual billing
8+Save 20% with annual billing 🎉
9  
10 Full feature access · Priority support

How it works

Three steps, then silence

01

Paste a URL

Point Opplurk at any public page — a pricing page, a changelog, a careers board, a product listing.

02

We watch it

Opplurk re-scrapes on a schedule and diffs each version against the last, down to the line.

03

You get told

Real changes land in Slack, email, or a webhook — with a plain-language summary of what moved.

Features

Everything you need to keep watch

Page content monitors

Track any page's text. Opplurk converts it to clean markdown and diffs it, so layout churn doesn't fire false alarms.

Product price monitors

Pull a product's price from a listing and alert when it moves, with the before and after side by side.

Site link monitors

Watch a whole domain's sitemap. Get told when pages are published or pulled down.

AI change summaries

Optional plain-language summaries of what changed and why it might matter. Bring your own key, or run without them.

AI noise filter

Cookie banners and rotating ads shouldn't page you. Opplurk can score each change against what you said you cared about.

Alerts where you work

Slack, email, or a plain JSON webhook. Route each monitor wherever it belongs.

Pricing

Start free. Self-host for nothing.

Run it on your own VPS and every tier below is free forever.

Free

$0/month

For keeping an eye on a handful of pages.

  • 5 watched pages
  • Daily checks
  • Email alerts
  • Visual diffs
Start watching

Pro

Popular

$49/month

For teams tracking competitors and suppliers.

  • 50 watched pages
  • Hourly checks
  • Slack + email + webhooks
  • AI change summaries
  • AI noise filter
Start watching

Team

$149/month

For everyone who needs to know first.

  • 200 watched pages
  • 5-minute checks
  • Shared watchlists
  • Webhooks + API
  • Priority support
Start watching

FAQ

Questions, answered

Every check re-scrapes the page and converts it to clean markdown, then hashes it. If the hash moved, Opplurk diffs the new version against the last one line by line and stores the result. Because it normalizes the content first, cosmetic churn like whitespace or script tags doesn't register as a change.

Something on the internet is about to change.

Start watching the pages that matter to you. Free to start, free to self-host, no credit card.

opplurk

Website change monitoring. An Entity Consulting product.