Everything you need to catch a howl.
Four pillars, one platform: monitoring, on-call routing, incident response, and status communication — with integrations tying into every layer. Deployment-sensitive data handling is verified per environment, alongside transparent pricing and a real free tier.
HTTP, TCP, DNS, and ICMP probes. One uniform API.
HTTP/HTTPS, TCP, DNS, and ICMP ping checks, extended in place with keyword matching, response validation, and SSL-certificate + domain-expiry guards. Configure every probe with the same JSON shape: type-specific fields live next to a sharedinterval_s+ region selector. Same probe definition in the dashboard and the REST API.
HTTP
{
"type": "http",
"url": "https://api.example.com/health",
"method": "GET",
"interval_s": 30,
"regions": ["howlops-a", "howlops-us-a"]
}KEYWORD
{
"type": "http",
"url": "https://example.com/",
"expect_keyword": "Welcome",
"expect_status": 200,
"interval_s": 60
}SSL + WHOIS
{
"type": "http",
"url": "https://example.com/",
"ssl_check": true,
"check_domain_expiry": true,
"interval_s": 3600
}TCP
{
"type": "tcp",
"host": "db.example.com",
"tcp_port": 5432,
"interval_s": 60
}DNS
{
"type": "dns",
"host": "example.com",
"dns_record_type": "A",
"dns_expected_value": "203.0.113.10",
"interval_s": 300
}HEARTBEAT
# Cron job pings every 5 min curl -sS -X POST \ https://api.howlops.com/api/v1/hb/<slug>
ICMP
{
"type": "ping",
"host": "203.0.113.42",
"interval_s": 60,
"packet_loss_threshold": 0.1
}From signal to action in seconds.
API-configurable rotations. Multi-step escalation. Drag-to-override on the weekly grid. Every transition shows up on the incident timeline so the postmortem writes itself.
ILLUSTRATIVE ESCALATION · INC-4821
14:02:11
a probe detects HTTP 503 on api.example.com
14:02:31
incident #INC-4821 opened (Warning)
14:02:32
#ops + on-call engineer paged via Slack
14:03:01
push → on-call engineer (no ack in 30s)
14:03:31
escalated → backup on-call
14:03:54
backup on-call acknowledged
14:11:08
on-call engineer deployed rollback
14:12:40
all regions see 200 OK
14:13:01
incident resolved · MTTR 10m50s
Tell your customers before they tell you.
Branded status pages on your domain. Component-level health. 90-day uptime history. Email subscribers get notified the moment an incident opens, escalates, or resolves.
status.acme.com
API gateway
99.99%
Web dashboard
99.95%
Probers (EU)
99.97%
Async workers
99.88%
Plug into the tools your team already uses.
Slack, Discord, Telegram, PagerDuty, Teams, Opsgenie, webhooks, GitHub Actions. HMAC-signed inbound webhooks let anything that can POST become an integration.
Slack
Discord
Telegram
PagerDuty
MS Teams
Opsgenie
Webhooks
GitHub Actions
REST API
RSS
Feature pages in detail
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