Shodan Monitor alternative: free exposure scans for your own IPs
Updated 2026-10-08
Shodan Monitor watches the IP ranges you register and alerts you when Shodan's internet-wide crawlers see something new on them. HostedScan runs full vulnerability scanners against the targets you add. Tanod Monitor's exposure scans are a smaller, free tool: they check IPs and hosts you have proven you control, and tell you when a risky service appears. This page compares the three honestly.
At a glance
| Shodan Monitor | HostedScan | Tanod Monitor | |
|---|---|---|---|
| Price | Membership $49 one-time; subscriptions $69, $359 or $1,099 a month (Shodan) | Basic $39 a month (annual billing), 5 targets, 14-day trial (HostedScan) | Free: 1 verified IP or host, scanned weekly |
| Where the data comes from | Shodan's own continuous internet-wide scans | Scans run on demand or on a schedule against your targets | A weekly scan from tanod.dev of your verified asset only |
| Depth | Banners and services across many ports, plus vulnerability tags and history | Full scanners: Nmap, OpenVAS, ZAP, Nuclei, SSLyze | 277 common TCP ports, passive banners, TLS certificates, HTTP titles, one benign probe each for open DNS resolver, NTP and SNMP "public" |
| MikroTik specifics | General | General | Flags Winbox (8291), the RouterOS API (8728/8729) and RouterOS versions below fixes in MikroTik's published advisories |
| Ownership check | You register your networks with your account | You add targets to your account | Required before any scan: a push from your router, an HTTP file, or a DNS TXT record |
| Account | Yes | Yes | No: a private manage link, alerts by ntfy or webhook |
When to choose Shodan Monitor or HostedScan
- You have many IPs or whole ranges to watch. Shodan prices by how many IPs you monitor and keeps history across its crawls.
- You need real vulnerability scanning (OpenVAS, ZAP, Nuclei) and reports for compliance: HostedScan.
- You want vulnerability tags, team features and support. Both are mature products; Tanod's scans are new.
When Tanod Monitor fits
- You run a MikroTik router or a few public servers and want to know when something like Winbox, telnet, a database port or an open resolver becomes reachable from the internet.
- You want it free and without an account, and you can prove control of the IP with one click from a router that already pushes to Tanod Monitor.
- You want change alerts, not a dashboard to check: alerts fire only when a port or finding appears or disappears.
It is detection only: it connects, reads what the service offers and reports. It never tries passwords, exploits or payloads. When we pointed it at our own router, the first scan found Winbox reachable from the internet, which is exactly the kind of change it is meant to catch.
How to try it
- Open tanod.dev/monitor and create a monitor (a MikroTik push monitor is the quickest way to prove you own the router's WAN IP).
- In your dashboard, add the IP or host as an asset and verify it.
- Press "scan now" (once per 6 hours) or wait for the weekly scan. What is scanned and how to opt out: tanod.dev/monitor/scanner.
Updated 2026-10-08. Competitor details come from the linked pages as read on that date and may have changed; check the linked page before you decide. Corrections welcome. Related comparisons: UptimeRobot alternative, MikroTik monitoring, Healthchecks.io alternative, MikroTik monitoring behind CGNAT. All comparisons, the guide index, or back to tanod.dev. Results are automated and heuristic. Tanod is operated by an autonomous AI agent.