Speed isn't a feature — it's revenue, conversion, SEO, and retention. Every layer of the Cloudflare edge exists to shave milliseconds off every request, for every user, everywhere.
Every request you can answer from cache is a request your origin never pays for. Cloudflare runs a hierarchical edge cache across 330+ cities — with Cache Rules for per-route control, Tiered Cache to lift hit ratios, and Cache Reserve for persistent retention. Less origin traffic. Lower egress bills. Faster pages.
Match on URL, headers, cookies, or queries. Set edge & browser TTLs and custom cache keys without touching app code — a measurable drop in origin requests for the routes that matter.
An edge miss becomes a regional hit — not a request to your origin. Smart Tiered Cache picks the optimal topology automatically. Hit ratios climb, origin egress drops, and your app never knows the difference.
A deeper, longer-lasting cache. When the edge cache misses, we serve from Reserve instead of hitting your origin — slashing bandwidth costs and keeping you online even when your origin isn't.
The public internet routes packets along the cheapest BGP path — not the fastest. Argo measures real-time congestion across Cloudflare's private backbone and steers your traffic onto the lowest-latency route, every time. One toggle. Zero code changes. Measurable on every cache miss.
Argo runs continuous latency probes across the Cloudflare backbone and route databases worldwide. When a request can't be served from cache, it's steered through the lowest-latency hop — often avoiding congested transit entirely.
Argo doesn't pick a path once and forget it. Every request is steered against billions of live latency measurements collected across Cloudflare's network. As congestion shifts, your traffic shifts with it — automatically, transparently, every time.
Persistent backbone connections, HTTP/3 over QUIC, and 0-RTT resumption shave more time off each round-trip. Argo turns the network itself into a performance feature — invisible to your app, measurable in your logs.
Cloudflare Load Balancing runs health checks and steering at the same 300+ POPs that already terminate TLS, run WAF, and cache your content — so failover happens next to the user, not after a hop to a regional load balancer. Put it in front of the AWS ALB, GCP LB, F5, NGINX, or HAProxy you already run. Augment — don't rip out.
Our monitor origin-health-http-80 sends an HTTP GET to
/health on port 80, expects a 200, and
runs every 60s from every Cloudflare region — with the Host header
pinned to lb.nobledemos.com so the origin sees the real
hostname.
Endpoints are address-shaped — an IP, a hostname, or a Cloudflare
Tunnel. pool-us holds an origin in Atlanta,
pool-eu one in Paris. A pool is healthy while its
endpoints pass the monitor; unhealthy pools drop out of steering.
lb.nobledemos.com is proxied through Cloudflare, points
at both pools, and carries a steering policy plus a fallback pool
for when everything else is unhealthy. One hostname, many origins,
decided at the edge.
The live demo runs Proximity: each request is measured as a
great-circle distance from the answering POP to each pool's
coordinates, and routed to the closest healthy one. A request from
Europe lands on pool-eu; from the US, on
pool-us.
Off, Geo, Random, Dynamic, Proximity, and Least Outstanding Requests — chosen per hostname. Each answers a different question: where is the user, which pool is fastest, which is least loaded.
Write a Ruleset Engine expression and override steering on any request attribute — header, cookie, country, path, or a combination. This is where Cloudflare pulls ahead of a fixed steering dropdown.
http.request.headers["x-canary"][0] eq "true"
→ override to pool-canary
Send only flagged traffic to a new build, everyone else stays on the stable pool.
http.cookie contains "prefer=eu"
→ override to pool-eu
Support and debugging: force a specific user onto a chosen pool without touching steering.
starts_with(http.request.uri.path, "/api/legacy/")
→ override to pool-legacy
Exactly the shape of the live demo rule — /force-us pins to pool-us.
$ curl -sI https://lb.nobledemos.com/whoami | grep -i x-served-by-region
$ curl -sI https://lb.nobledemos.com/force-us/whoami | grep -i x-served-by-region
$ curl -si https://lb.nobledemos.com/health
Speed isn't a vibe — it's a number. Cloudflare Observatory runs Lighthouse-grade synthetic tests from 21 regions, captures Core Web Vitals from real visitors, and watches every hop between the edge and your origin. When something gets slow, you know which endpoint, which region, and which fix to apply.
Synthetic Lighthouse audits and Core Web Vitals from real visitors. Recommendations point straight at the Cloudflare feature that closes the gap.
See every endpoint's latency and error rate. Find the slow route dragging p95 — before your users do.
Browser and network tests, on demand or daily. Compare any two runs side-by-side to prove a deploy made things faster.
Every layer of the Cloudflare edge — cache, network, assets — exists for one reason: less waiting, more revenue. You don't have to choose which one. They all ship together.