Website Backup & Recovery

3/22/2022

This post introduces the integration of Cloudflare Health Checks with the Cloudflare Notifications platform, enabling webhook notifications. It details how to configure Health Checks to monitor origin health (reachability, responsiveness, HTTP status codes, body content) and send alerts via webhooks to external services like Slack, Google Chat, and Microsoft Teams, or SIEM platforms. It also provides a detailed example of building a custom origin health status page using Cloudflare Workers and Durable Objects that receives webhook updates.

7/8/2021

Introduced Origin Error Rate notifications, a new feature that monitors elevated 5xx errors from origin servers. This feature moves beyond simple 'origin down' alerts by employing Service Level Objectives (SLOs) and burn rate calculations to detect anomalies and notify users when error budgets are being consumed too quickly. It offers configurable sensitivity levels (99.9%, 99.8%, 99.7%) and allows users to select specific internet properties for monitoring.

6/12/2020

Introduced Standalone Health Check Analytics, providing detailed logs and data visualizations to help users debug issues and understand performance variations across regions. The waterfall view within Event Logs offers granular insights into TCP connection time, TLS handshake time, and time to first byte (TTFB). Health checks are run from selected regions across Cloudflare's global network, with at least two locations agreeing on status before reporting a change.

4/13/2020

This post details the development of the passive origin monitoring feature by interns. It describes the problem of silent origin server failures, the technical challenges of processing large volumes of data to detect these failures, ensuring high alert quality by tuning thresholds to minimize false positives/negatives for low-traffic sites, and designing actionable email notifications. The post also highlights the iterative development process, customer feedback incorporation, and the creation of internal capabilities for proactive account team support.

12/11/2019

Introduced Standalone Health Checks for active origin monitoring with configurable parameters (response code, protocol, interval, path) and Health Check Analytics for trend analysis. Launched Passive Origin Monitoring for automatic email notifications upon detecting origin downtime without configuration. Introduced Zero-Downtime Failover, which automatically retries requests to alternate origins within the same HTTP request to avert failures, and made it default for Pro, Business, and Enterprise plans. Announced the Notification Center as a central hub for managing notifications, initially supporting Passive Origin Monitoring alerts with multiple recipients.

6/29/2011

Introduced CodeGuard as a Cloudflare App, offering automatic website backups based on code changes and a feature called "Undo Power" for recovery. A special free BasicPlus plan is available for Cloudflare customers.