Resolve company domains before you dedupe your CRM
Run company domains in bulk through a redirect checker and group records that resolve to the same final destination. Different-looking domains often point to the same company.
One CRM record uses the old domain. Another uses the new one. A third uses a redirecting alias. On the surface they look different; in practice they may all redirect to the same site. Resolving the domains first turns raw string matching into a much stronger duplicate signal.
Why this matters for CRM deduplication
A lot of duplicate detection starts with exact matches. That catches the easy cases.
The messier cases happen when domains have changed over time or when a company uses multiple web properties that redirect into one main site. If your CRM stores both versions, you can end up with duplicate company records that do not look like duplicates at first glance.
Running those domains through a redirect checker helps you normalize the input. Instead of comparing raw domains, you can compare where those domains actually end up. That gives you a much better signal for likely duplicates.
Common duplicate patterns this catches
This workflow is especially useful when:
- A company rebrands and changes domains
- An old corporate domain now redirects to a new one
- Regional or campaign domains redirect to the main site
- Subsidiaries or acquired brands roll into one destination
- Sales reps manually enter whatever domain they saw first
- Enrichment tools return a different domain than the one already stored in your CRM
These are exactly the kinds of cases that make duplicate cleanup harder than it should be.
How to use checkredirects.io for domain-based dedupe
Start with a list of company domains from your CRM.
Run them in bulk through checkredirects.io and review the final destinations. Group together domains that resolve to the same final URL or obvious canonical destination. From there, you can flag likely duplicate companies for review instead of relying only on raw string matching.
This works well as a pre-processing step before a cleanup project, migration, enrichment pass, or deduplication workflow. checkredirects.io is built for batch inspection and lets you review redirect chains, timing, and response behavior across many URLs at once.
Useful on its own, better with a real dedupe workflow
checkredirects.io helps you answer a very practical question: do these different domains actually point to the same place?
That is often enough to surface likely duplicates. But if you want a full CRM workflow around it, Neon Deer already has a live implementation for Attio. Their Duplicate Detection app checks company domains (including redirects) and logs likely duplicates into dedicated review lists inside the CRM.
Once duplicates are flagged, Neon Deer also offers a done-for-you merge service that handles the actual record consolidation. They programmatically merge People and Company records at scale, combining all notes, tasks, and related data into the surviving record. Useful if you have hundreds or thousands of duplicates and do not want to merge them one by one.
Frequently asked questions
Can redirects help find duplicate company records?
Yes. If two different company domains redirect to the same final destination, that is often a strong signal that the records may refer to the same company and should be reviewed.
Does checkredirects.io merge CRM duplicates automatically?
No. checkredirects.io helps you find likely duplicates by resolving domains. The actual merging should happen in your CRM. If you use Attio, Neon Deer's merge service can handle that step at scale.
What kind of CRM data should I run through this?
Company website domains are the best fit. Export the domain field from your CRM, run the domains through the checker, and review groups that land on the same final site.
Is this useful for Attio deduplication?
Yes. Neon Deer's Duplicate Detection for Attio app explicitly uses domain redirects as one of its duplicate-detection signals for company records.
Run your company domains
Resolve each domain and group records that land on the same destination.