DumbMonitMonitors
Monitors you can add
113 monitor types in 11 families. Each one is read through its own API, with a read-only account wherever the vendor offers one. Pick a family for the details.
Monitor descriptions and alert rule texts are in English, as in the product. The page labels follow your language.
- Server with agentLinux, Windows, macOS or FreeBSD: CPU, memory, disks, network, Docker, services, backups.Servers and hardware
- Windows (WinRM, no agent)A Windows server or PC without installing anything, through WinRM and WMI queries: CPU, memory, disks, services (the chosen ones and every automatic service that is stopped), uptime and recent event log errors.Servers and hardware
- Server hardware (Redfish)Fans, temperatures, power supplies, drives and memory, read from the BMC (iDRAC, iLO…).Servers and hardware
- UPS with NUTUPS served by Network UPS Tools: on battery, low or worn-out battery, charge, runtime left, load and input voltage, for every UPS the server publishes.Servers and hardware
- Active DirectoryA Windows domain over LDAP, read-only: domain controllers and FSMO roles, privileged group members, password policy, and security findings such as Kerberos-roastable accounts, unconstrained delegation or an old krbtgt password.Servers and hardware
- Prometheus exporterAny exporter that serves Prometheus metrics (node_exporter, windows_exporter, cAdvisor, blackbox_exporter…): every series is stored and can be graphed and used in threshold alerts.Servers and hardware
- OpenTelemetry sourceReceives OpenTelemetry metrics (OTLP over HTTP) from a collector or an instrumented application: gauges, counters and histograms are stored and can be graphed and alerted on.Servers and hardware
- SNMP deviceSwitches, routers, UPS, printers, access points: anything that answers SNMP.Network equipment
- SNMP value (single OID)Reads one SNMP object and checks its value against a range or a text.Network equipment
- MikroTik RouterOSRouterOS and RouterBOOT versions behind, CPU, memory, temperatures, fans and power supplies, and errors and link losses on every interface.Network equipment
- UniFi NetworkThe UniFi network and what it manages: gateways, switches and access points offline or waiting for adoption, firmware updates, WAN and Internet status, clients and alarms, and the last connection of the clients you mark as worth watching.Network equipment
- Cisco Meraki BetaA Cisco Meraki organization through the Dashboard API: devices offline, Internet uplinks that failed, license out of compliance or expiring, clients per network.Network equipment
- TP-Link Omada BetaA TP-Link Omada controller through its OpenAPI: devices disconnected, CPU and memory saturated, firmware updates offered, clients per site.Network equipment
- Aruba Central BetaThe Wi-Fi access points, switches and gateways of an HPE Aruba Networking Central account through its cloud API: devices offline, active critical alerts, devices in poor health, and the number of connected clients.Network equipment
- TailscaleThe devices of a tailnet through the Tailscale API: servers offline, node keys about to expire, devices awaiting approval, clients to update, and each device's last connection.Network equipment
- OpenVPN serverAn OpenVPN server through its management interface: version, whether it reports itself connected, and every client currently in session with its addresses and traffic.Network equipment
- RADIUS serverAuthenticates a test account (Access-Request): catches a server that is up but no longer accepts logins.Network equipment
- Network configuration backupKeep every version of a switch, router or firewall configuration, see what changed line by line, and be told when it changes.Network equipment
- Microsoft 365Microsoft 365 service health, active incidents, license usage and risky users, read through Microsoft Graph.Cloud services
- Microsoft Entra IDEntra ID application secret and certificate expiry, on-premises directory sync age and administrators without MFA, read through Microsoft Graph.Cloud services
- Microsoft AzureResource Health and active Azure Monitor alerts of an Azure subscription, read through a Reader service principal.Cloud services
- AWS (CloudWatch)CloudWatch alarms in the ALARM state, EC2 status checks and CPU, and RDS CPU and free storage.Cloud services
- CloudflareZones, tunnels, certificates, traffic errors and load balancer pools of a Cloudflare account, read through the Cloudflare API.Cloud services
- Hetzner CloudServers, volumes and backups of a Hetzner Cloud project, read through the Hetzner Cloud API.Cloud services
- OVHcloudState and running tasks of the VPS and dedicated servers of an OVHcloud account, read through the OVHcloud API.Cloud services
- InfomaniakExpiry dates, locks and maintenance flags of the products of an Infomaniak account (domains, hosting, mail), read through the Infomaniak API.Cloud services
- OPNsenseGateway latency and loss, VPN tunnels, DHCP leases, services and pending updates.Firewalls
- pfSenseA pfSense firewall through its REST API package: gateways down or losing packets, interfaces without link, stopped services, CPU, memory and disk.Firewalls
- FortiGateA Fortinet firewall through the FortiOS REST API: IPsec tunnels down, interfaces without link, HA out of sync, memory near conserve mode, FortiGuard licences expiring.Firewalls
- Sophos FirewallA Sophos Firewall (SFOS) through its XML API: the link of every interface in a zone, and which IPsec connections are activated. Its live tunnel, HA and licence state are not in that API.Firewalls
- Palo Alto PAN-OS BetaA Palo Alto Networks firewall through the PAN-OS XML API: interfaces without link, HA peer lost or out of sync, session table filling up, management CPU and memory, licences expiring, failed commits.Firewalls
- SonicWall SonicOS BetaA SonicWall firewall through the SonicOS 7 API: the link of every interface bound to a zone. Kept minimal on purpose: only the API paths SonicWall publishes are read.Firewalls
- Proxmox VENodes, virtual machines, containers, storage and backups of a Proxmox server or cluster.Hypervisors and clusters
- Proxmox Datacenter ManagerThe console over several clusters: which instances it reaches, their failed tasks, its health.Hypervisors and clusters
- VMware vSpherevCenter and ESXi hosts: hosts not responding or left in maintenance, VMs and their VMware Tools, datastores filling up, and the alarms vSphere raised.Hypervisors and clusters
- XCP-ng / XenServerAn XCP-ng or XenServer pool through XAPI: hosts disabled or offline, VMs and their power state, storage repositories filling up, and a high-availability pool that can no longer survive the host failures it is set to tolerate.Hypervisors and clusters
- Nutanix AHV (Prism Central)Nutanix clusters through the v4 API of Prism Central: hosts degraded or in maintenance, AHV VMs and their power state, storage containers filling up, and unresolved alerts by severity.Hypervisors and clusters
- Kubernetes / k3sA cluster through its API: nodes not ready or under pressure, pods crash looping or stuck pending, workloads missing replicas, volume claims never bound.Hypervisors and clusters
- Synology DSMVolumes, pools, disk health, temperature, Hyper Backup and Active Backup jobs, Synology Drive and Photos.NAS and backup
- TrueNASPool health, the failing disk, scrubs, snapshots, replication and TrueNAS's own alerts.NAS and backup
- UnraidAn Unraid server through its GraphQL API: array stopped, disks disabled or with errors, parity checks, cache pool usage, containers that should be running.NAS and backup
- QNAP QTS / QuTS hero BetaA QNAP NAS through the CGI pages of its web interface: volumes filling up, disks whose SMART health is no longer good or too hot, processor temperature, firmware updates.NAS and backup
- Ceph BetaA Ceph cluster through the REST API of the manager's dashboard: health and its checks, OSDs down or nearly full, placement groups not clean, capacity, pools, monitors out of the quorum.NAS and backup
- MinIO BetaA MinIO object store through its Prometheus metrics: nodes and drives offline, capacity, failed heals, replication failures and S3 server errors.NAS and backup
- Proxmox Backup ServerBackup freshness per machine, failed tasks, sync and verify jobs, datastore space.NAS and backup
- Veeam Backup & ReplicationA Veeam backup server through its REST API: jobs whose last run failed, failed sessions of the last 24 hours, repositories filling up, license expiry.NAS and backup
- Kopia BetaA Kopia server through its REST API: the last snapshot of each source (age, errors, size, files), sources that missed their schedule, and the repository connection.NAS and backup
- Duplicati BetaA Duplicati server through its API: the age of each task's last successful backup, its last result, duration, size, warnings and errors, and the task running now.NAS and backup
- Website or web API (HTTP)A page or API answers with the right status and content, over a valid certificate.Websites, certificates and checks
- Network port (TCP)A port accepts connections: SSH, a file share, a game server, anything without its own probe.Websites, certificates and checks
- UDP serviceSends a datagram to a UDP port and checks the reply, or that nobody refuses it.Websites, certificates and checks
- Domain name (DNS)A name resolves, and points to the address you expect.Websites, certificates and checks
- Reachable host (ping)A host answers ICMP: response time and packet loss.Websites, certificates and checks
- TLS certificateA certificate is valid on any TLS port, with a warning well before it expires.Websites, certificates and checks
- NTP time serverA time server answers SNTP with a sane clock: offset, delay, stratum and leap indicator.Websites, certificates and checks
- SSH serverReads the SSH banner and, if you ask, checks that the host key is still the one you know.Websites, certificates and checks
- gRPC serviceCalls the standard gRPC health check (grpc.health.v1): catches a service that is up but reports itself unhealthy.Websites, certificates and checks
- WebSocket endpointCompletes the upgrade handshake, and can exchange a frame.Websites, certificates and checks
- Heartbeat (push)Your cron job or backup script calls DumbMonit; when it goes quiet, you are told.Websites, certificates and checks
- Domain expiryA registered domain, read from its registry over RDAP: days left before expiry, a hold that takes it out of the DNS, a redemption period, and its registrar.Websites, certificates and checks
- Third-party service statusThe public status page of a provider you depend on (Cloudflare, GitHub, Atlassian, AWS…), read as a monitor: it fails when the provider reports an incident, so you hear about it before your users do.Websites, certificates and checks
- Website health & SEOKnow when a website breaks, goes blank, drops out of search engines or changes its title, description or canonical address, for one site or hundreds.Websites, certificates and checks
- Website changesBe told when the content of a page, or of a whole site, changes, with a before/after view of each change.Websites, certificates and checks
- TraefikThe reverse proxy: routers disabled by a configuration error, backend servers failing their health check, certificates that never arrive or are not renewed, and the share of 5xx answers.Web servers and reverse proxies
- CaddyThe web server and reverse proxy: upstreams failing their health checks, a configuration reload that failed, handler errors and the share of 5xx answers.Web servers and reverse proxies
- NginxThe web server and reverse proxy: active and waiting connections, the accept/handled/request rates, and upstream health when the commercial NGINX Plus API is available.Web servers and reverse proxies
- Apache httpdThe web server: busy and idle workers, the worker scoreboard by state, and request/byte rates when ExtendedStatus is on.Web servers and reverse proxies
- Nginx Proxy ManagerThe proxy manager: hosts nginx refused to load, disabled hosts, and the certificates the hosts present, before Let's Encrypt renewal failures turn into expired sites.Web servers and reverse proxies
- NextcloudMaintenance mode left on, a database upgrade waiting, Nextcloud and app updates, active users, free space, PHP OPcache.Self-hosted applications
- ImmichJob queues that stall or sit paused, updates, disk space, photo and video counts, each device's last connection and last backup.Self-hosted applications
- Paperless-ngxRedis, Celery, search index and classifier health, failed imports, updates, disk space, document count.Self-hosted applications
- JellyfinScheduled tasks that fail (library scans), a restart waiting, broken plugins, active streams and transcodes.Self-hosted applications
- Plex Media ServerActive streams and transcodes, bandwidth, library scans, updates, read from the server itself.Self-hosted applications
- Home AssistantThe smart home behind the dashboard: integrations whose entities went unavailable, low batteries, updates waiting and open repairs, plus the last connection of the companion app's phones and tablets.Self-hosted applications
- GitLab (self-managed)Readiness, Sidekiq backlog, CI runners online or not, pending migrations, instance statistics, sign-up and two-factor settings, licence expiry.Self-hosted applications
- Forgejo / GiteaHealth check, repository, user and organisation counts, scheduled tasks running on time, Actions runners online or not.Self-hosted applications
- Keycloak BetaReadiness and database health, version, realms (disabled ones), active sessions and users per realm.Self-hosted applications
- authentik BetaReadiness, workers, failed system tasks, outpost connections, version updates, users.Self-hosted applications
- Vaultwarden BetaLiveness, version, open sign-ups, and with the admin token disabled-account and two-step login counts.Self-hosted applications
- UniFi Protect BetaCameras offline or not recording, NVR disks and storage, recording switched off.Self-hosted applications
- Frigate NVR BetaCameras that stopped delivering frames, detector speed and hangs, frame rates, recording storage, updates.Self-hosted applications
- Sonarr BetaHealth warnings, failing download clients and indexers, download queue errors, library disk space, updates.Self-hosted applications
- Radarr BetaHealth warnings, failing download clients and indexers, download queue errors, library disk space, updates.Self-hosted applications
- Lidarr BetaHealth warnings, failing download clients and indexers, download queue errors, library disk space, updates.Self-hosted applications
- Prowlarr BetaHealth warnings, indexers disabled after failures, disk space, updates.Self-hosted applications
- qBittorrent BetaTorrents in error or stalled, lost connectivity, download and upload speed, free space, torrents by state.Self-hosted applications
- Pi-holeThe DNS ad blocker: blocking on or paused, queries and share blocked, blocklist age, upstream failures, updates and its own diagnosis messages.DNS, mail and security
- AdGuard HomeThe DNS filter: protection on or paused, queries and blocks, filter lists that stopped updating, upstream servers that fail, updates.DNS, mail and security
- CrowdSecThe security engine: active decisions, alerts, bouncers that stopped pulling, log lines read and not parsed, Local API health.DNS, mail and security
- Mail relay (SMTP)A mail server greets, offers STARTTLS and accepts a login, like a real client.DNS, mail and security
- Mailbox (IMAP)An IMAP server greets, offers TLS and accepts a login, like a real mail client.DNS, mail and security
- Mailbox (POP3)A POP3 server greets, offers TLS and accepts a login, like a real mail client.DNS, mail and security
- MDaemon Email Server Via agentNeeds the agent on the Windows server: mail queues, sessions, Windows services and disk space, plus the mail ports answering and, optionally, the XML API.DNS, mail and security
- SecurityGateway for Email Servers Via agentNeeds the agent on the Windows server: Windows services, mail queue folders and disk space, plus the gateway ports answering and the REST API counters (12.5 and later).DNS, mail and security
- Proxmox Mail GatewayMail queues and stuck mail, spam and virus traffic, quarantine, signature age.DNS, mail and security
- mailcow BetaStopped containers, Postfix queue size and age, mail volume, mailboxes near their quota.DNS, mail and security
- Mail server reputationA mail domain's MX, or a mail server's public address, checked against the major DNS blocklists (Spamhaus, Barracuda, SpamCop…) or the ones you pick, with reverse DNS, SPF and DMARC, and the delisting page of every list that lists it. No API key needed.DNS, mail and security
- IP range blocklistEvery address of a public IPv4 range, up to a /24, checked against the major DNS blocklists, or the ones you pick: how many are listed, on which lists, and the delisting page of each. No API key needed.DNS, mail and security
- PostgreSQL databaseLogs in and runs a query: catches a database that is up but no longer answering.Databases and observability
- MySQL or MariaDB databaseLogs in and runs a query: catches a database that is up but no longer answering.Databases and observability
- SQL ServerThe database engine itself: databases that are not online, blocked requests, sessions against the limit, disk space of the data volumes, SQL Server Agent jobs and AlwaysOn availability groups.Databases and observability
- Oracle DatabaseThe database through Oracle REST Data Services: an instance that is not open, tablespaces filling up, sessions against the limit, Data Guard lag, the fast recovery area and failed scheduler jobs.Databases and observability
- MongoDBThe document database itself: replica set members and lag, a missing primary, connections against the limit, WiredTiger cache and assertions.Databases and observability
- Redis / ValkeyThe in-memory store itself: memory against maxmemory, refused connections, replication link and lag, failed saves and keyspace size.Databases and observability
- RabbitMQThe message broker: memory and disk alarms that block publishers, stopped nodes and partitions, queues filling up with no consumer.Databases and observability
- Apache KafkaThe event streaming cluster: offline and under-replicated partitions, a missing controller, and the lag of the consumer groups.Databases and observability
- MQTT brokerConnects, subscribes to a topic, and can wait for a retained message.Databases and observability
- Elasticsearch / OpenSearchThe search cluster: red or yellow status, unassigned shards, disk filling up on a node and JVM heap pressure.Databases and observability
- InfluxDBThe time series database: health and readiness, uptime, memory, file descriptors and server errors, for InfluxDB 2 and 3.Databases and observability
- VictoriaMetricsThe time series database itself: ingestion, samples it refuses, disk headroom before it turns read-only, slow inserts and active series.Databases and observability
- VictoriaLogsThe log database itself: lines ingested, lines it refuses, disk headroom before it turns read-only, errors.Databases and observability
- Grafana LokiThe log server itself: readiness, log lines it refuses and why, chunks that fail to reach storage, write-ahead log disk, request errors.Databases and observability
- GraylogThe log server and its search cluster: processing, journal backlog, buffers, throughput in and out, OpenSearch health, failed inputs and indexing failures.Databases and observability
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