Every edge feature, explained.
Explore Web ADC's protocols, caching, load balancing, security and high-availability features by category.
Features
18 features#HTTPS and HTTP/2
Serve encrypted traffic and multiplex requests over HTTP/2.
#TLS 1.3 and certificate compression
Use modern TLS and compress certificates during the handshake.
#Dynamic Brotli compression
Compress responses before they reach clients.
#ZeroConf and cPanel integration
Simplify cluster registration and management through ZeroConf and cPanel.
Learn more →#Domain transfer
Move a domain by dropping its server configuration into the cluster.
#Page cache and file-backed storage
Cache pages at the ADC and keep cached objects on disk.
#Dynamic Web Cache Open API
Let applications control cache behavior through the open cache API.
#Edge Side Includes
Cache shared page sections while keeping personalized sections dynamic.
Learn more →#WordPress and Magento acceleration
Cache application pages at the edge for WordPress and Magento.
#PageSpeed optimization
Apply PageSpeed optimizations before responses reach visitors.
#Layer 7 HTTP and HTTPS load balancing
Route application requests according to HTTP-level rules.
#Layer 4 load balancing
Distribute TCP traffic without inspecting HTTP content.
#HTTPS and QUIC offloading
Handle client encryption at the ADC to reduce backend work.
#Session affinity with failover
Keep a session on its backend and move it when that backend fails.
#Content-aware request routing
Choose backends using the request's host, path and other content.
#WebAdmin console
Manage listeners, clusters and routing in a web interface.
Security
12 features#QUIC port anti-DDoS protection
Apply smart traffic controls to the UDP port used by HTTP/3.
#WordPress brute-force protection
Limit repeated login attempts against WordPress.
#Botnet detection and blocking
Detect abusive bots and block them through the firewall.
#Per-IP bandwidth and request limits
Throttle clients that exceed configured rates.
#Per-IP connection accounting
Track and limit connections from a single address.
#Hotlink protection
Restrict other sites from embedding protected assets.
#Strict HTTP request checking
Reject malformed or suspicious HTTP requests.
#ModSecurity-compatible WAF
Run compatible web application firewall rules at the ADC.
#Request and application filtering
Filter attacking requests by content and protect dynamic backends.
#chroot isolation
Run the server in a restricted file system environment.
Reliability
04 features#Zero-downtime maintenance
Apply configuration changes and software upgrades while serving traffic.
#Watchdog and instant recovery
Restart failed processes to restore service quickly.
#Graceful shutdown
Let in-flight requests finish before workers exit.
#User-space operation
Keep the ADC process separate from the operating system kernel.
Scalability
06 features#SO_REUSEPORT
Distribute accepted connections across multiple workers.
#Dynamic node scaling
Add or remove backend nodes as capacity changes.
#Event-driven multiprocess design
Use event loops and multiple workers to handle many connections.
#High connection capacity
Scale to large numbers of concurrent connections per node.
#High request throughput
Serve high request rates across CPU cores.
#TLS and network throughput
Scale encrypted traffic and bandwidth with available hardware.
Availability
03 features
Flexibility
14 features#Configurable deployments
Adapt listeners, clusters and routing to different environments.
#HTTP/1.0 and HTTP/1.1 compatibility
Continue serving older clients and backend protocols.
#Multiple load-balancing algorithms
Choose round robin, least load or least session routing.
#Multiple worker processes
Run multiple workers to use available CPU cores.
#Request-based routing
Route by domain, URL, cookies or TLS session.
#Backend health monitoring
Check backend health and avoid unavailable nodes.
#Multiple backend protocols
Connect to HTTP, HTTPS, LSAPI, FastCGI and AJP backends.
#Response compression
Compress or decompress responses between clients and backends.
#Protocol upgrade and downgrade
Maintain backend connections across different HTTP versions.
#URL rewrite
Rewrite incoming URLs before routing requests.
#TLS session cache and tickets
Reuse TLS sessions to reduce handshake overhead.
#SNI and multiple certificates
Serve many HTTPS domains with their own certificates.
#Geotargeting
Use visitor location as a routing or policy signal.
#IPv6
Serve and route IPv6 traffic.
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