Load Balancing & ADC Calculators

20 free load balancing & adc calculators in Networking.

ADC API Gateway Throughput CalculatorSize an API gateway's request ceiling from per-request CPU cost, with uplifts for authentication, transformation and cache hits.
ADC Health Score CalculatorScore an application delivery tier across availability, latency, errors, utilisation, SSL load and persistence, and name the weak spot.
ADC Traffic Split CalculatorPlan a canary traffic split on the load balancer: canary load, capacity headroom, error-rate delta and whether to widen or roll back.
API Rate Limit CalculatorTest a token-bucket rate limit against real client demand: rejected requests, burst drain time and the per-client allowance.
Application Gateway CalculatorSize a cloud application gateway in capacity units from throughput, new connections and persistent connections, with a WAF uplift.
CDN Edge Distribution CalculatorSplit CDN load across points of presence and check the origin request rate and egress that survives the cache hit ratio.
Connection Pool CalculatorSize a database or upstream connection pool with Little's law, and see the queue wait a pool that is too small produces.
HAProxy Capacity CalculatorFind whether HAProxy is limited by frontend maxconn or backend server maxconn, and how long sessions wait in the queue.
HTTP/2 Stream CalculatorWork out HTTP/2 stream concurrency, connections needed and the worst-case flow-control window memory a proxy commits.
HTTP/3 QUIC CalculatorCompare HTTP/3 over QUIC against TCP plus TLS: handshake round trips, congestion-window growth and total transfer time.
Least Connections CalculatorModel how least-connections balancing shifts new requests away from slow servers, and the arrival rate each member ends up with.
Load Balancer Capacity CalculatorSize a load balancer pair from connection arrival rate and hold time, and check the state table against the per-node limit.
NGINX Capacity CalculatorDerive NGINX connection capacity from worker processes and worker_connections, and the proxy buffer memory it commits.
Reverse Proxy Throughput CalculatorEstimate reverse-proxy throughput, worker CPU utilisation and maximum request rate, with the TLS termination penalty included.
Round Robin Distribution CalculatorShow exactly how round-robin splits requests across a pool, including the remainder servers and the resulting per-server load.
Session Persistence CalculatorSize the persistence table for sticky sessions: concurrent sessions, memory footprint and how long a node takes to drain.
SSL Offload Capacity CalculatorSize SSL/TLS offload cores separately for asymmetric handshakes and symmetric bulk encryption, including session resumption.
TLS Handshake Rate CalculatorCalculate sustainable TLS handshake rate from core count, key algorithm and resumption rate, plus the round trips setup costs.
WebSocket Capacity CalculatorSize WebSocket fan-out: servers required, message rate, bandwidth and the memory each long-lived connection pins.
Weighted Load Distribution CalculatorTurn pool member weights into request shares, per-pool request counts and the weighted round-robin cycle length.