Bulk email website status checker: is the website behind each address online?
In short: Paste email addresses and see, row by row, whether the domain after the @ answers on the web, redirects, returns an error or doesn't resolve, with the HTTP status and whether it has MX records. Limit: Reads the domain, never the mailbox: a live site says nothing about whether a person's address exists.
A bulk email website status checker reads the domain after the @ in each address and requests its home page once. Paste up to 100 unique domains a run, or 500 after a free Google sign-in, and every address gets a row: Live, Redirects, HTTP error, No answer or Doesn't resolve, with the status code. It checks the domain, not the mailbox. Download the CSV.
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
ana@initech.example is at a domain whose website answered 503.
- Address
- ana@initech.example
- Domain
- initech.example
- HTTP status
- 503
What this means for you
A site that is down can mean a closed company or a mail-only domain. The has_mx column shows which.
- Status code and final URL per address
- Redirects followed and shown
- Has MX in the CSV
- CSV out, nothing emailed
- HTTP
- Redirects
- CSV
By SimpleVerifier Team · Last updated
Also in: Português (Brasil) · Español · Deutsch · Français
Got a list where some company sites may be down?
- Paste it above to see which addresses are at domains whose website isn't loading, 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 check whether the websites behind an email list are online?
- Paste email addresses, one per line, or upload a CSV. Addresses are found anywhere in the text, so a whole export works.
- Press Check the websites. Only the unique domains are sent, never the mailbox names, 10 a request: DNS plus one request for each home page. No mail is sent.
- Read each row: Live, Redirects, HTTP error, No answer or Doesn't resolve, with the final status code and final URL.
- Filter to the sites that aren't loading, check the has_mx column in the CSV, and hand the rest to the mailbox check.
Example
- You enter
- Four addresses:
jane@acme.example(site answers 200),tom@globex.example(redirects to another site),ana@initech.example(answers 503) andbo@umbrella.example(no address record). - You get
- jane: Live. tom: Redirects, with the final URL. ana: HTTP error, status 503. bo: Doesn't resolve. Each row also says whether the domain has MX records. Download the CSV.
- Limits
- Up to 100 unique domains a run without an account and 500 when signed in with Google. 10 domains a request; DNS plus one request to each home page.
What does each website result mean?
Live means the domain answered with a success status. Redirects means it answered after sending the visitor to another site, and the final URL is in the CSV. HTTP error means a 4xx or 5xx status (RFC 9110). No answer means the domain resolves but no web server replied. Doesn't resolve means there is no address record at all.
Not checked appears for a domain that resolves only to private or reserved addresses, which are never requested.
Why add the mail records to a website check?
A website and a mailbox are separate. A company can close its site and keep its mail, or keep a site and drop its mail. Each row therefore says whether the domain has MX records, and the address is only marked as one to leave out when the domain has no address record and no MX record, so mail to it will bounce.
For a verdict that also weighs parking signals, use the bulk email dead company website checker.
What about sites that block automated requests?
Some sites answer 401, 403 or 429 to a request that is not a browser. Those show as an HTTP error, even though the company may be fine. Open a few by hand before you drop them.
To check the domains without the addresses, use the bulk website status checker.
Who uses this tool, and for what?
- Marketers
- Find addresses at domains whose website has gone before an import.
- Sales teams
- Check that the companies on a prospect list still have a live site.
- Agencies
- Add a website-status column to a client list audit and export it as CSV.
- Developers
- Triage a signup export for domains that do not resolve.
What can’t this tool tell you?
- Reads the domain, never the mailbox: a live site says nothing about whether a person's address exists.
- One request to the home page per domain, from our server; a site that blocks automated requests shows as an HTTP error.
- A website that is down does not mean the mail is; the has_mx column shows the mail records.
- Up to 100 unique domains a run without an account, 500 signed in. Free providers such as gmail.com are requested like any domain.
Common questions
- How do I check if the websites behind an email list are online?
- Paste the addresses into a bulk email website status checker like this one. It reads each address's domain, requests its home page once and shows the status.
- Is this bulk email website status 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 live website can sit above a closed mailbox.
- Does a down website mean the email will bounce?
- No. Mail and web are separate. The has_mx column shows whether the domain still takes mail.
- Why does a good site show an HTTP error?
- Some servers refuse requests that are not from a browser. A 403 or 429 can be a block, not a dead site.
- Does it send an email to the domain?
- No. It reads DNS and requests each home page once. 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.