Commonly used Prometheus exporters and their recommended ports

Exporter	Recommended Port	Original Default Port	Notes
Node Exporter	9100	9100	Linux/Unix host metrics (universal)
Blackbox Exporter	9101	9102	Probing endpoints (ICMP/HTTP/TCP/SSL)
MySQL Exporter	9102	9101	MySQL/MariaDB databases
PostgreSQL Exporter	9103	9105	PostgreSQL databases
Redis Exporter	9104	9112	Redis in-memory database
Windows Exporter	9105	9117	Windows hosts
MongoDB Exporter	9106	9106	MongoDB databases
JMX Exporter	9107	9107	JVM metrics (Kafka, Cassandra, etc.)
Apache Exporter	9108	9117	Apache HTTPD servers
nginx_exporter	9109	9111	NGINX web/app servers
cAdvisor	9110	8080	Container metrics (K8s, Docker hosts)
kube-state-metrics	9111	8080	Kubernetes resource/object metrics
Proxmox Exporter	9112	9221	Proxmox VE (hypervisor, VM/container/storage metrics)
GitLab Exporter	9113	9168	GitLab application
GitLab Runner Exporter	9114	9252	GitLab Runner agents
RabbitMQ Exporter	9115	9114	RabbitMQ messaging
Kafka Exporter	9116	9113	Apache Kafka
Elasticsearch Exporter	9117	9115	Elasticsearch / OpenSearch
HAProxy Exporter	9118	9116	HAProxy load balancer
SNMP Exporter	9119	9116	Network/legacy equipment (switches/routers)
Graphite Exporter	9120 (metrics) 2003 (ingester)	9108 (metrics) 9110 (ingester)	Importing old Graphite metrics
CloudWatch Exporter	9121	9118	AWS metrics
Azure Exporter	9122	9119	Azure cloud metrics
Stackdriver Exporter	9123	9120	Google Cloud Platform
PHP-FPM Exporter	9124	9121	PHP FastCGI server (WordPress, Magento, etc.)
rtrtr Exporter	9125	9108	(Rare) RPKI/routing