Analytics - New cfWorker metric in Server-Timing header
UpdateUnverifiedAdded Sep 24, 2026
The Server-Timing header now includes a new cfWorker metric that measures time spent executing Cloudflare Workers, including any subrequests performed by the Worker. This helps developers accurately identify whether high Time to First Byte (TTFB) is caused by Worker processing or slow upstream dependencies.
Topics: Streaming, Observability, Developer tools, Performance
More Cloudflare developer platform releases
Every Cloudflare developer platform release| Date | Release | Type |
|---|---|---|
| Feb 19 | AI Gateway, Workers AI - AI dashboard experience improvementsunverified Update | Update |
| Feb 19 | Digital Experience Monitoring - DEX Supports EU Customer Metadata Boundaryunverified Update | Update |
| Feb 19 | Security Center - Cloudforce One Threat events graphs are now visible in the dashboardunverified Update | Update |
| Feb 17 | Access - Streamlined clientless browser isolation for private applicationsunverified Update | Update |
| Feb 17 | Access - Policies for bookmark applicationsunverified Update | Update |
| Feb 17 | Agents, Workers - Agents SDK v0.5.0: Protocol message control, retry utilities, data parts, and @cloudflare/ai-chat v0.1.0unverified Update | Update |
| Feb 17 | Cloudflare One, Cloudflare WAN, Cloudflare Network Firewall, Network Flow - Cloudflare One Product Name Updatesunverified Update | Update |
| Feb 17 | Containers - Docker-in-Docker support added to Containers and Sandboxesunverified Update | Update |
Also shipped on Feb 18, 2026
Cloudflare in February 2026| Date | Company | Release | Product | Type |
|---|---|---|---|---|
| Feb 18 |  Google Cloud | Support for .NET 10 runtime is in General Availability unverified | Cloud Run | GA |
| Feb 18 |  Tailscale | Tailscale Peer Relays GAunverified | Tailscale | GA |
| Feb 18 |  LlamaIndex | LlamaIndex 0.14.15unverified | LlamaIndex | Update |
| Feb 18 |  Notion | A home for everything in Libraryunverified | Notion | Update |
| Feb 18 | Tailscale | Fleet device posture integrationunverified | Tailscale | Update |
| Feb 18 | Tailscale | Huntress device posture integrationunverified | Tailscale | Update |
Sources: each vendor's own release notes, changelogs and GitHub releases, read daily to monthly by how often it posts. Logos via logo.dev; trademarks belong to their owners.