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Brand Monitoring via Bulk Domain Checks

Updated April 2026 ยท 5 min read

Quick Answer Set up a saved list of brand variations and typosquats and re-run availability + WHOIS weekly with the Bulk Domain Checker Chrome extension. Spot newly-registered impersonation domains before they go live, and catch newly-available squat domains before competitors do.
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Brand-monitoring SaaS tools (RiskIQ, MarkMonitor) cost $5K-50K/year and the bulk of what they do โ€” repeated availability + WHOIS checks on a list of brand variations โ€” is something you can run yourself in 10 minutes a week.

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What you actually need to monitor

For most companies, brand-domain monitoring boils down to four lists:

For a typical SaaS startup, that totals 80-200 names. Easy to maintain in a saved preset.


Set up a weekly run

  1. Build the list once (use a typosquat generator like typo-name-generator or just brainstorm).
  2. Save it as a preset in the extension (Pro plan keeps named lists across sessions).
  3. Run weekly. Available rows are squat candidates you may want to acquire defensively. Newly-registered rows are alerts: someone just bought a typosquat.
  4. Diff against last week's CSV to surface only the changes.

Total time per week: 10-15 minutes including the diff.


When to act on a hit

Three categories of action:


Limitations vs commercial brand-monitoring

Self-rolling this catches 80% of what RiskIQ or MarkMonitor catch. Where they win:

If you're a Fortune 500 with active phishing exposure, pay for the SaaS. For most startups and SMBs, the DIY weekly check is enough.


How Brand Monitoring via Bulk Domain Checks โ€” Tools Compared

ApproachSetup timeAnnual costCoverageBest for
Bulk Domain Checker (extension) DIY30 min onceFree (or Pro $5/mo)Domain registration onlySMB, startup
MarkMonitor Brand DefenseWeeks (sales cycle)$10K-50KDomain + SSL + phishing kit + takedownFortune 500
RiskIQ Digital FootprintWeeks$5K-30KDomain + dark web + brand abuseMid-market+
Manual brand-name search at registrarOngoingFreeSpottySmall list, low priority
Phishing-feed providers (e.g., PhishTank)Free + integrationFreePhishing onlyAdd-on signal

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Frequently Asked Questions

How big should my watch list be?

Most companies need 80-200 entries: typosquats, phonetics, hyphens, common app-suffix variants, and 5-10 ccTLDs.

How often should I run it?

Weekly is the sweet spot. Daily is overkill for most. Monthly is too slow if you have active phishing exposure.

Is this enough for a public company?

No. Public companies should pair this with a commercial brand-protection service for active phishing-kit detection and takedown workflow.

Can I export changes to Slack or email?

Pro plan can export to webhook (POST to your Slack incoming webhook). Free plan exports CSV manually.

Does it monitor SSL cert issuance?

No. SSL cert monitoring requires CT-log subscription; tools like Cert Spotter (free) handle that. The extension covers domain registration only.

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