Use case · Product & engineering
Know the moment a competitor ships — or a dependency changes.
Monitor changelogs, release notes, and status pages across the competitors and vendors you care about. Get an AI summary of what shipped, and push it through a webhook or pull it via API straight into the tools your team already uses.
No credit card required · 10 monitored URLs free for 14 days · Webhook + API delivery
Releases don't come with a notification.
Competitors ship features quietly and let the changelog speak for itself. Vendors deprecate an API or change behavior in release notes nobody on your team is reading. By the time it surfaces — in a customer call or a broken build — you're reacting late. Page Deltas watches the pages that announce change and tells you, in plain language, the moment something ships.
Every ship, on both sides of your stack.
Track what competitors release and what your dependencies change — in one feed.
Track every release
Monitor competitor changelogs, release notes, and “what's new” pages and get alerted when they ship — so a launch never surprises you in a customer call.
Watch your dependencies
Vendor changelogs, API deprecations, breaking changes, and status pages — know when a service you build on changes before it breaks your stack.
AI summary of what shipped
Every update comes with a plain-language summary of what's new, so you grasp a release without reading the whole changelog.
Built for developers
Push releases through signed webhooks or pull them via API into Slack, CI, an internal feed, or your own dashboard. Teams, Discord, and email too.
Webhook & API
A release feed your tools can subscribe to.
This is a developer's use case, so it ships with a developer's delivery. Pipe detected releases and status changes through a signed webhook in real time, or pull them via API — structured payloads you can drop into a Slack channel, a CI step, an internal changelog, or your own dashboard.
- ✓Signed webhooks for real-time push into your systems
- ✓Programmatic API tokens to pull changes on your schedule
- ✓Structured payloads ready to route, store, and automate on
- ✓Slack, Teams, Discord, and email for the rest of the team
What you can monitor.
Anywhere change gets announced — for the products you compete with and the ones you build on.
Competitor changelogs
Catch every shipped feature, fix, and quiet change the day it lands.
Release notes & “what's new”
Track the pages competitors use to announce what they built and how they frame it.
Status & incident pages
Know when a vendor posts an incident or outage — sometimes before your own alerts fire.
API changelogs & deprecations
Get warned about breaking changes and sunset dates before they reach production.
Vendor & dependency docs
Watch the docs for services you build on for changes to limits, behavior, or pricing.
Roadmap & “coming soon”
See what competitors signal next, before it actually ships.
One feed, several jobs.
The same release signal, put to work by different teams.
For product managers
Track competitor release cadence and ship-velocity so you're never caught flat-footed on a roadmap call.
For engineering & platform teams
Catch dependency, API, and status changes before they break a build or a customer.
For developer relations & support
Spot vendor incidents and changes early, and keep your own users a step ahead of them.
For founders & strategy
Read how fast and where rivals are shipping as a live signal of momentum.
Wire up your release feed in three steps.
Set it up once. Every ship comes to you from then on.
Add changelogs, status & docs pages
Point us at the release notes, status pages, and API docs you care about — competitor and vendor alike.
Pick your delivery
Choose channels, or grab an API token and set up a webhook to wire releases into your own stack.
Never miss a ship
New releases and changes land with an AI summary, in the channel or system your team already uses.
Frequently asked questions
- How do I track a competitor's product releases?
- Monitor their changelog, release notes, or “what's new” page; Page Deltas alerts you with an AI summary whenever they ship, so launches don't surprise you in a customer call or a roadmap review.
- Can I get warned about breaking API changes in a dependency?
- Yes. Monitor a vendor's API changelog or docs and you'll be alerted when deprecations, breaking changes, or new limits are posted — before they hit production.
- Does it work with webhooks and an API?
- Yes, and it's a great fit for this use case. Push changes through signed webhooks in real time or pull them via API, with structured payloads you can route into Slack, a CI step, or your own dashboard.
- Can I monitor a status page for outages?
- Yes. Monitor a vendor's status or incident page and get alerted when they post an incident or change status — sometimes before your own monitoring catches the downstream effect.
- How is this different from subscribing to their changelog email or RSS?
- Not every page offers a feed, feeds get missed, and they don't summarize or filter. Page Deltas watches any public page or PDF, summarizes what changed, filters out noise, and delivers through your channels and API uniformly.
- Where do the alerts go?
- Slack, Microsoft Teams, Discord, email, or a signed webhook / API — whatever fits how your team and tools already work.
Never be surprised by a release again.
Track every competitor ship and every dependency change — and pipe it straight into your tools. Start free today.