Know the moment
your domain is at risk.
SSL expiry, DNS tampering, breaches, lookalike attacks — detected instantly, rolled into one risk score. For founders, IT managers, and agencies who can't afford surprises.
No credit card · 1 domain free forever
Free instant scan — no signup required
Who Uses GuardHound
Built for people who own domains
Whether you manage one domain or hundreds, GuardHound keeps you ahead of threats.
Best for growing SaaS products
Startup Founder
“Expired certs used to blindside us. Now I get a 30-day heads-up automatically.”
Best for managing client domains
Agency Developer
“Clients see their real-time score. It became a genuine value-add overnight.”
Best for domain portfolios
IT Manager
“One dashboard for 40 domains. Found 3 DNS issues I didn’t know existed.”
The GuardHound Platform
Five pillars. One risk score.
Uptime monitoring, certificate transparency, domain intelligence, digital risk, and a seven-dimension risk score — combined into one platform so you stop juggling tabs and start seeing the whole attack surface.
Uptime & Service Monitors
HTTP, keyword, ping, port, DNS, and SSL handshake checks — from every 30 seconds on Unlimited. Outages and slow response trigger email alerts and roll into your risk score.
SSL & Certificate Transparency
Expiry alerts at 30 and 7 days plus full Certificate Transparency log monitoring on Pro — approved-issuer policy, SAN constraints, and unknown-certificate / shadow-IT alerts whenever a new cert appears for your domain.
Domain Intelligence
DNS / WHOIS history, registrar & nameserver change tracking, subdomain explorer via CT logs, and asset search across your portfolio. Snapshot for Free, full history for Pro.
Digital Risk & Lookalikes
Typosquat / homoglyph generation, brand watchlists, screenshot evidence packs, and a triage queue. Unlimited adds takedown workflow with abuse-contact templates.
Seven-Dimension Risk Score
Uptime, certificates, DNS, email authentication, breach exposure, vulnerabilities, and brand risk — weighted into a single 0–100 score with a daily snapshot and top contributors so you know exactly what dropped your number.
Public Status Pages
Branded status pages backed by your service monitors. 1 page on Starter, 5 on Pro, unlimited on Unlimited — perfect for keeping customers informed without a separate StatusPage subscription.
Breach & CVE Monitoring
Domain-wide breach lookups via XposedOrNot plus HTTP-header CVE fingerprinting against NVD and CISA KEV. Both feed the breach and vulnerability dimensions of your score.
Bulk Import & Exports
Onboard hundreds of monitors from CSV in one shot. Pro / Unlimited also stream cursor-paginated CSV / JSON exports of incidents, monitors, scan history, and per-domain bundles — ready for your warehouse or SIEM.
API Access
Four scoped API keys (full, read-only, monitor-only, incident-only). Drive monitors, fetch reports, and pull exports from your own automation. Full OpenAPI docs available.
How It Works
From scan to secure in minutes
No agents to install, no configuration needed. Just enter your domain.
Enter your domain
Type any domain into the free scanner. No account required for your first scan.
We run the full platform
Uptime, SSL & CT, DNS / WHOIS intelligence, breach & CVE checks, and lookalike scans — all in parallel against your domain.
Get your score
A 0–100 security score with detailed findings tells you exactly where you stand.
Monitor 24/7
Add it as a monitor and GuardHound watches it continuously, alerting you the moment something changes.
Try it now — scan any domain for free
No signup, no credit card. See your seven-dimension risk score in under 30 seconds.
Start Free Scan →Platform
See GuardHound in Action
A powerful security dashboard built for clarity.
Why GuardHound?
All-in-one domain security, built for SMBs
Other tools cover a slice. GuardHound covers the whole attack surface — at a price that makes sense.
| Feature | GuardHound | Others |
|---|---|---|
| Uptime + security in one platform | All five pillars unified | UptimeRobot: uptime only |
| SMB-friendly pricing | From $0/mo | SecurityTrails: enterprise pricing |
| Breach & credential monitoring | Domain-wide | HIBP: email-only lookup |
| Continuous automated checks | Down to 30 seconds | Manual checks or daily at best |
| Lookalike, CT & takedown coverage | Built-in | Separate tools or enterprise add-ons |
Pricing
Plans for every stage
Start free with one monitor. Upgrade when you need more domains or faster scan intervals.
1 domain · Manual + 1 daily scheduled scan
- SSL certificate monitoring
- DNS email security (SPF, DMARC, DKIM)
- Security score tracking
- CVE vulnerability check
- Lookalike domain scan
- WHOIS snapshot
- Top 3 findings preview per scan
3 domains · 5 service monitors · 1 status page
- Everything in Free
- Daily + hourly scheduled scans
- 5 service monitors (HTTP, ping, port, keyword)
- 1 public status page
- Expiry-only certificate transparency
- Email alerts on threat & uptime changes
10 domains · 25 monitors @ 5-min · 5 status pages
- Everything in Starter
- Service monitors as fast as every 5 minutes
- Full Certificate Transparency & digital risk
- Full DNS / WHOIS history & intel
- Bulk import & CSV / JSON exports
- API access (4 scoped keys)
30 domains · 75 monitors @ 60s · 15 status pages
- Everything in Pro
- 30 domains and 75 service monitors
- Monitors as fast as every 60 seconds
- 15 public status pages
- Full intel, digital risk, exports & API
Unlimited domains, monitors & status pages
- Everything in Pro
- Unlimited domains, monitors & status pages
- Monitors as fast as every 30 seconds
- Takedown workflow for digital risk
- Portfolio mode & white-label status pages
FAQ
Frequently asked questions
Everything you need to know about GuardHound.
What does GuardHound actually check?
Do I need to install anything?
Is the free scan really free?
How is the seven-dimension risk score calculated?
How often does GuardHound check my domain?
Can I cancel or change plans at any time?
Start protecting your domains today
Five pillars, one risk score. Know the moment something changes.