OnWebChange

Overview

OnWebChange lets you select particular elements on a webpage instead of treating every page change as equally important. That is useful for tracking a product price, a headline or a listing while ignoring unrelated edits. It also handles JavaScript-driven sites, PDFs, images, text files and other online documents. Custom headers allow monitoring behind login pages, a meaningful advantage when the material you need is not publicly accessible.

Checks can run as often as every five minutes, while the free plan is limited to basic daily monitoring. Notifications can be sent by email, mobile notification or webhook; Pushover is the named third-party mobile service for Android and iOS. Translation into major languages and concise update summaries are practical additions for multilingual or high-volume tracking. Groups, labels, pause/resume controls and CSV import/export make a larger tracker collection easier to maintain.

Page health checks are supported alongside content monitoring. Founded in 2009, the service provides documentation, video tutorials, email contact and member-support enquiries. User data is stored at a Linode data center in London, with German data centers potentially used for availability and resilience. Privacy rights include access, correction, erasure, restriction, objection and portability. Charities helping children or addressing the climate crisis can use the service without paying.

Key features

• Element-level tracking: Follow a price, headline or listing without being distracted by unrelated page edits; this is more precise than a simple whole-site watch.
• Dynamic and protected content: JavaScript support and custom-header access extend monitoring to modern and login-gated pages, although configuring protected targets is likely to require more care than watching a public URL.
• Document monitoring: Changes in PDFs, images, text files and other online documents are covered, making the service useful for policies, reports and downloadable material.
• Alert routing: Email, mobile notifications and webhooks suit personal reminders, phone-based alerts and automated workflows. Pushover adds a named Android/iOS route rather than requiring every alert to stay in email.
• Tracker administration: Labels and groups help organize collections; pausing, resuming and CSV transfer are valuable when campaigns or inventories change.
• AI assistance: Translation and short change summaries reduce review time, especially when monitoring pages in several languages.

Pricing

OnWebChange uses a freemium model, with paid plans from €0.89 per month and a free trial.

The Free plan is suitable for occasional personal checks, but three trackers and daily checks are a poor match for fast-moving prices or availability. Lite is the inexpensive step up for a small set of watches and a few extra recipients, though it still caps trackers at ten. Standard is the strongest value for anyone managing many targets: it removes the tracker ceiling and supports unlimited subscribers, while Turbo-50 and Turbo-100 are better when a defined 50- or 100-tracker capacity is preferable. All listed prices are monthly; the published plan terms do not add a seat allowance beyond their per-tracker recipient limits.

Platforms

OnWebChange is available on web, Android and iOS, and exposes an API. Webhooks make it practical to connect monitoring events to other systems, while mobile support suits readers who need alerts away from a desktop.

Who it's for

Choose it for price and listing surveillance, document-change alerts, multilingual tracking, or pages that require login headers. It also fits small teams that need several recipients per tracker without adopting a heavyweight monitoring suite. Look elsewhere if your priority is high-frequency uptime measurement, regional infrastructure checks or a self-hosted deployment; OnWebChange's free tier is daily and its documented check type is HTTP.

Pros and cons

Pros

• Tracks precise page elements, dynamic pages, documents and protected content in one service.
• Checks as often as every five minutes and delivers email, mobile and webhook alerts.
• Standard combines unlimited trackers with unlimited subscribers at €2.79 per month.
• CSV management, labels, groups, translation and summaries support sustained monitoring work.
• Qualifying child-focused and climate charities pay nothing.

Cons

• The free plan allows only three trackers with daily checks, limiting urgent monitoring.
• Additional notification addresses are constrained on Lite, and higher tracker capacities require paid tiers.
• The service is HTTP-based, so readers seeking broad synthetic or multi-location uptime coverage may need another tool.

Alternatives

Browse Website Monitoring Software for a wider category comparison. Distill Web Monitor is the better pick if you want browser-extension and desktop-platform coverage, 25 free monitors and 1,000 cloud checks per month. Choose Dotcom-Monitor for up to 25 free targets, five-minute checks and two monitoring locations. Tallwatch suits teams wanting 60-second checks from three regions, a status page and Slack alerts on its free plan. Visual Sentinel is an alternative with Android, iOS, web and API access and a $6 monthly Solo plan. Better Stack fits personal projects needing monitors, heartbeats, a status page, logs and session replays in one free offering. Downdetector is aimed at outage notifications and favorite-service tracking rather than detailed page-content watching. SolidPing is preferable for self-hosted or private-location monitoring with team members and 100 free monitors. Uptime Kuma is a free self-hosted option when avoiding paid limits matters more than managed content-monitoring features.

Verdict

OnWebChange is a strong choice for individuals, charities and small teams that need affordable, targeted monitoring across webpages, documents and login-protected content. Its main reason to choose it is the combination of precise tracking, flexible alerts and a €2.79 Standard plan with unlimited trackers and subscribers. Look elsewhere when daily free checks are too slow, when you need multi-region uptime engineering, or when self-hosting is a requirement.