Attack Surface Monitoring

Know your attack surface
before attackers do.

Real-time sensors on SSL certificates, DNS changes, data leaks, domain expiry and subdomain exposure. Get alerted the moment something changes.

No credit card required · Free plan includes 5 sensors · Setup in 60 seconds

2 min

DNS check interval

5 min

SSL check interval

5

sensor types

A–F

risk grade

app.surfacewatch.io/sensors

Total sensors

12

OK

9

Warning

2

Critical

1

SSL · example.com:443 OK · A
DNS · A · api.example.com changed
Leak · example.com new breach

5 sensor types

Complete visibility,
one platform

Each sensor runs on a fixed schedule, detects anomalies and fires notifications automatically.

SSL Certificate

Monitor TLS version, cipher suites, expiry date, OCSP stapling and cert transparency. Alerts at 90/30/7 days before expiry.

every 5 min A–F grade

DNS Records

Watch A, AAAA, MX, TXT, NS, CNAME and SOA records. Instant alert on any value change — DNS hijacking detected in minutes.

every 2 min change detection

Data Leaks

Continuous scanning of credential databases and breach repositories. Notified the moment new records appear for your domain.

every 30 min new breach alert

Domain Name

WHOIS expiry tracking and registrar monitoring. Never let a domain drop because you missed the renewal email.

daily expiry thresholds

Attack Surface

Subdomain discovery via certificate transparency logs (crt.sh) and passive DNS. Get alerted when new subdomains appear.

every 12 hours crt.sh + HackerTarget

Instant Alerts

Email via AWS SES, Telegram bot and HTTPS webhooks (Slack, Teams, custom). One event triggers all your channels simultaneously.

Email Telegram Webhook

Setup in 60 seconds

How it works

01

Add a sensor

Choose a sensor type, enter your domain or host. SurfaceWatch validates it and runs the first scan immediately.

02

Automatic scanning

Celery workers run checks on a fixed schedule — every 2 minutes for DNS, every 5 minutes for SSL. Zero configuration needed.

03

Get alerted

The moment an anomaly is detected, you receive an alert via Email, Telegram or your webhook. Act before it becomes an incident.

surfacewatch — alerts

[2026-03-13 14:32:01] CRITICAL DNS A record changed on api.example.com

[2026-03-13 14:32:01] Previous: 203.0.113.10 Current: 198.51.100.47

[2026-03-13 14:32:02] NOTIFY Email → [email protected]

[2026-03-13 14:32:02] NOTIFY Telegram → @SOC_Team ✓

Core feature

Your employees' credentials are leaking.
Know it before hackers act.

Every 30 minutes, SurfaceWatch scans breach databases and stealer log repositories for email/password pairs matching your domain. When a new credential appears, you get an instant alert — not a weekly digest.

  • Stealer logs & breach databases

    Email + password pairs from infostealer malware, combo lists and known breach dumps.

  • Alert on new records only

    No noise. SurfaceWatch only fires when a credential appears that wasn't there last scan.

  • Every 30 minutes

    Faster detection window than any weekly report. Minutes matter when credentials are live.

Data Leak · acmecorp.com

Last scan: 4 minutes ago

+3 new

47

total credentials

12

unique passwords

6

breach sources

NEW

j.martin@acmecorp.com

password: Acme2024! · Stealer log — Jan 2026

NEW

s.dupont@acmecorp.com

password: S3cur1ty# · Stealer log — Jan 2026

OLD

admin@acmecorp.com

password: •••••••• · LinkedIn 2024

OLD

p.bernard@acmecorp.com

password: •••••••• · Combo list 2023

Alert sent via Email + Telegram
scan #1284

SurfaceWatch Bot

🚨 2 new credentials leaked for acmecorp.com
j.martin@... · s.dupont@... · Stealer log Jan 2026

now

Simple pricing

Start free, scale when ready

All plans include the same check frequencies. Limits only apply to sensor count.

Free

$0 /month

Perfect to get started.

  • 5 sensors
  • All 5 sensor types
  • Email notifications
  • Telegram + webhooks
Get started free

Business

$99 /month

For security teams and MSSPs.

  • 200 sensors
  • All 5 sensor types
  • All notification channels
  • PDF reports export
Start Business

Enterprise — unlimited sensors

Custom limits, dedicated support, SLA and onboarding.

Contact us →

FAQ

Frequently asked questions

Start in 60 seconds

Know your attack surface.
React before it's too late.

Free plan. No credit card. 5 sensors ready to monitor.

Create free account →