Notifying users of page updates

2026-02-11 · Source: James' Coffee Blog · Field: Technology & Digital — Software Development & Engineering · Depth: Intermediate, short

Summary

The Artemis blog implemented a client-side banner to notify users when their open tabs might be out of date, specifically after midnight in their local timezone. This feature addresses the issue of users encountering stale content on non-real-time updating pages without creating a distracting experience. The banner appears ten minutes after midnight, suggesting new posts may be available, and is triggered by JavaScript logic that compares the page's open date with the current date and time. This initial implementation does not verify actual new content but aims to prompt a refresh when updates are most probable. The author plans to potentially enhance this in the future with a web request to confirm new posts before displaying the banner.

Key takeaway

For web developers building content sites that do not update in real-time, consider implementing a subtle, client-side notification system for potential page updates. This approach, triggered by time-based heuristics rather than constant server polling, can improve user experience by prompting refreshes for fresh content without being overly intrusive or resource-intensive. You should prioritize a simple implementation first, then iterate to include actual content checks if user confusion becomes an issue.

Key insights

Client-side logic can effectively signal potential page updates without constant server-side checks or user distraction.

Principles

• Minimize user distraction from update notifications.
• Align notification timing with likely content updates.

Method

Implement a client-side JavaScript function that checks the current time against the page's open time, displaying a refresh banner ten minutes past midnight in the user's timezone if a new day has elapsed.

In practice

• Use `setInterval` for periodic client-side checks.
• Compare `YYYY-MM-DD` timestamps to detect day changes.

Topics

• Client-side Notifications
• Web Page Updates
• JavaScript Implementation
• User Experience
• Time-based Triggers

Best for: Software Engineer, Product Designer

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Editorial summary, takeaway, and curation by AIssential. Original article published by James' Coffee Blog.