Bulk email website redirect checker: which companies' websites moved to another domain?
In short: Paste email addresses and see where each domain's website ends up after redirects, with companies that moved to another domain flagged. Limit: Reads the domain, never the mailbox: a website redirect says nothing about a particular address.
A bulk email website redirect checker reads the domain after the @ in each address and opens its website four ways (http and https, with and without www), following redirects. Paste up to 100 unique domains a run, or 500 signed in. Rows say moves to another domain, stays on its own domain or unreachable. It checks the domain, not the mailbox. Download the CSV.
Companies that moved may still have live mailboxes. Check every address.
Price: this tool is free. Checking a whole email list is from $9/mo, and the first 100 checks are free with Google, no card. Check your list free nowSee pricing
Sample result
tom@globex.example is at a domain whose website now ends on another domain.
- Address
- tom@globex.example
- Domain
- globex.example
- Ends at
- https://www.initech.example
What this means for you
A site that moves can mean a rebrand or a takeover. The mailbox may have moved with it or may be gone.
- Moved companies flagged
- The end address on every row
- A www redirect is not a move
- CSV out, nothing emailed
- Redirects
- Moved
- CSV
By SimpleVerifier Team · Last updated
Got a list of company addresses that may have rebranded or been bought?
- Paste it above to see where each address's website ends up, with a CSV of every row.
- Upload or paste it at /verify. Every address gets a live mailbox check, and the first 100 email checks are free with a Google sign-in, no card.
How do I find companies on an email list whose website moved?
- Paste email addresses, one per line, or upload a CSV. Addresses are found anywhere in the text, so a whole export works.
- Press Check where sites redirect. Only the unique domains are sent, never the mailbox names, 5 a request: each home page is requested four ways from our server and redirects are followed. No mail is sent.
- Read each row: Moves to another domain, Stays on its own domain or Website unreachable, with the address the site ends on.
- Filter to the moved rows, download the CSV with the end address and redirect set-up, and hand the rest to the mailbox check.
Example
- You enter
- Four addresses:
jane@acme.example(the site stays on acme.example),tom@globex.example(all four versions end on a different domain),ana@initech.example(redirects to its own www) andbo@umbrella.example(nothing answers). - You get
- jane: Stays on its own domain. tom: Moves to another domain, with the end address. ana: Stays on its own domain. bo: Website unreachable. Download the CSV.
- Limits
- Up to 100 unique domains a run without an account and 500 when signed in with Google. 5 domains a request; four requests to each home page, redirects followed.
What counts as moved?
A domain counts as moved when most of its four versions (http and https, with and without www) end on a different registered name than the one in the address. A redirect from acme.example to www.acme.example is not a move, because it is the same site.
Redirects are followed by the same guarded fetcher as the WWW and HTTPS redirect checker, through up to five hops. HTTP semantics for redirects are in RFC 9110.
Why does it matter on an email list?
A company whose old domain now sends visitors to a new one has often rebranded or been acquired. The address on your list may have moved to the new domain, or may have been closed with the old one. It is worth a look before you send to a whole segment.
A moved site says nothing certain about its mail: some companies keep mail on the old domain for years.
What do you do with the moved rows?
Look up the company by name, or run the end address through your own list. Keep the rows in the send list until the mailbox check says otherwise. For a verdict that also weighs parking signals and MX records, use the bulk email dead company website checker.
Before you email anyone on the rest, verify the addresses.
Who uses this tool, and for what?
- Sales teams
- Spot lead-list companies that rebranded or were acquired.
- Marketers
- Review addresses at moved companies before a campaign.
- Agencies
- See which client-list sites now live on another domain.
- Developers
- Triage a signup export for addresses at moved companies.
What can’t this tool tell you?
- Reads the domain, never the mailbox: a website redirect says nothing about a particular address.
- A move is judged from where most of the four versions end; a site that sends visitors by JavaScript or a page's own link is not followed.
- Four requests per domain from our server, redirects followed up to five hops, with no cookies.
- Up to 100 unique domains a run without an account, 500 signed in. Free providers such as gmail.com are looked up like any domain.
Common questions
- How do I find companies on an email list whose website moved?
- Paste the list into a bulk email website redirect checker like this one. It opens each address's domain four ways and flags those that end on a different registered name.
- Is this bulk email website redirect checker free?
- Yes. It is a free tool: up to 100 unique domains a run with no account, and up to 500 a run when you sign in with Google, with no card.
- Does it tell me whether the mailbox exists?
- No. It checks the domain, not the mailbox. A moved company's mail can stay on the old domain or move with the site.
- Is a redirect to www a move?
- No. A redirect from the bare domain to its own www version stays on the same site, so the row says Stays on its own domain.
- Why does a row say Website unreachable?
- None of the four versions answered. A domain used only for mail looks like this.
- Does it send an email to the domain?
- No. It requests each home page four ways. It never connects to a mail server.
Sources
A tidy list can still be full of dead addresses.
Extracting, deduplicating and syntax checks all work on the text of an address. None of them can tell whether the mailbox exists. Only the server that hosts it can answer that, through an SMTP check, and that is what the paid product does.
- Upload the cleaned file as it is: CSVs up to 100,000 rows
- A real SMTP mailbox check on every row, with catch-all detection
- Small list? Starter at $9/mo covers 2,500 emails a month, cancel anytime
Plans from $9 a month, cancel anytime, no contract. Sign in with Google and your first 100 email checks are free, no card. The free tools stay free either way.