When you onboard a new SEO client, the boring-but-important early task is the brand-domain audit: are the obvious TLD permutations of their brand name registered, parked, or available for cheap acquisition? Doing this manually for 50 brand variations across 15 TLDs is 750 lookups. Here is the agency workflow that takes 6 minutes.
Free Tool for Agency Brand Audits
Bulk Domain Checker runs entirely in your browser. No account, no upload, no watermark.
Add to Chrome — FreeThe brand-audit deliverable
Most agencies bake a "domain real estate audit" into their first-month deliverable. Format roughly:
- Client brand: BrandName, plus 5-15 phonetic variations and common typos.
- TLD set: .com, .net, .org, .co, .io, .app, .dev, .ai, .site, .shop, plus the client's home country ccTLD.
- Output: a CSV showing for each combo whether it's available, parked, or pointing at a real site.
Even at 50 brand x 12 TLD = 600 lookups, this is dead-simple work. The bottleneck is just throughput.
Workflow with the extension
- Build your matrix in Sheets: brand variations as rows, TLDs as columns, generate the cross-product as a flat list.
- Paste the flat list into the extension.
- Run. ~7 minutes for 600 rows.
- Export CSV.
- VLOOKUP back into your Sheets matrix to color-code the available/parked/registered cells.
Total elapsed: 15 minutes including Sheets setup. Same task in GoDaddy bulk search: 35-50 minutes due to the 500-line cap and per-account throttle.
Competitor monitoring
Beyond audits, agencies use the extension for ongoing competitor watch. Save a list of 100-300 competitor domains and re-run availability + WHOIS dates monthly. Spot patterns:
- A competitor's domain is approaching expiry — heads up to client about a possible name acquisition opportunity.
- A competitor registered new TLDs of their own brand — they may be planning a regional expansion.
- A competitor's name servers changed — possible CMS migration, new agency, or hosting move.
None of this is exotic; it's just data. The friction was always volume, and that's now zero.
White-label deliverable template
If you're packaging this as a deliverable, the format clients respond best to is:
- Top section: a 12-cell color-coded grid (12 TLDs × N brand variations) with green = available, yellow = parked, red = active competitor.
- Middle: a "Recommended acquisitions" list — 3-7 specific available combos worth grabbing for $9-15 each before a squatter notices.
- Bottom: a "Watch list" — registered TLDs to keep an eye on monthly.
The recommended acquisitions are usually the most valuable line item. A $12 .ai for a Series-A startup that hasn't claimed it yet has saved clients $5K-50K in later acquisition costs.
How Bulk Domain Checker for SEO Agencies — Tools Compared
| Workflow | Time for 600-domain audit | Cost | Repeatable monthly? | Output format |
|---|---|---|---|---|
| Bulk Domain Checker extension | ~7 min | Free | Yes (one-click rerun) | CSV |
| GoDaddy bulk search | ~35 min (split into 2 batches) | Free | Manual | Copy-paste |
| Manual via 1-by-1 lookups | 6+ hours | Free | No (too slow) | Manual |
| Whoxy bulk API | ~5 min | $1.50-15 per audit | Yes (scripted) | JSON/CSV |
| VA on Upwork | 4-6 hours | $25-75 per audit | Costs again each time | CSV |
Get It Done in Under a Minute
Install the free Chrome extension and process your PDFs locally. Works on Windows, Mac, Linux, and Chromebook.
Add Bulk Domain Checker to ChromeRelated Guides
- How to Check 1,000+ Domains at Once
- Brand Monitoring with Bulk Domain Checks
- Bulk Domain Checker vs GoDaddy
- Free Domain Name Research Tools
Frequently Asked Questions
Can I use this for client work commercially?
Yes. Both free and Pro tiers permit commercial use. There is no per-client license needed.
How often should we re-run the audit?
Monthly is typical for active clients. Quarterly for retainer clients in stable industries.
Does it integrate with our reporting tools?
It exports CSV, which imports into Looker Studio, Excel, Sheets, or Notion. There is no direct API integration with Ahrefs, SEMrush, etc.
What about international ccTLDs?
Most ccTLDs work. A few aggressive-throttle ones (.io, .ws) may need smaller batches.
Can we save TLD presets per client?
Pro plan saves named presets so monthly re-runs are one click.
