Bulk email website response time checker: how fast does each address's company website answer?
In short: Paste email addresses and time one request to each company's home page, labelled fast, moderate or slow, with the CSV keeping each address. Limit: Reads the domain, never the mailbox: a website's speed says nothing about a particular address.
A bulk email website response time checker reads the domain after the @ in each address and times one request to its home page from our server. Paste up to 100 unique domains a run, or 500 signed in. Each row says fast (under 1 second), moderate (1 to 3) or slow (over 3). It checks the domain, not the mailbox. Download the CSV.
A slow website doesn't mean a dead mailbox. 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 company whose home page answered in under a second.
- Address
- tom@globex.example
- Response time
- 640 ms
- Redirects
- None
What this means for you
One reading from our server varies between runs; it is a rough sort, not a benchmark.
- Fast, moderate or slow per address
- Time and final address in the CSV
- Slow rows filtered in one click
- Nothing emailed
- Speed
- Status
- CSV
By SimpleVerifier Team · Last updated
Got a list of company addresses and want to spot slow or struggling sites?
- Paste it above to time each company's home page, with the response time in the CSV.
- 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 time the websites behind an email list?
- Paste email addresses, one per line, or upload a CSV. Addresses are found anywhere in the text, so a whole export works.
- Press Time the websites. Only the unique domains are sent, never the mailbox names, 10 a request: one timed GET of each home page from our server, no cookies, nothing stored. No mail is sent.
- Read each row: Fast, Moderate or Slow with the time in the detail, or why the page could not be timed.
- Filter to the slow rows, download the CSV with the time and final address beside each email, and hand the list to the mailbox check.
Example
- You enter
- Four addresses:
jane@acme.example(answers in under a second),tom@globex.example(answers in two seconds),ana@initech.example(answers in over three seconds) andbo@umbrella.example(no website). - You get
- jane: Fast (under 1 s). tom: Moderate (1 to 3 s). ana: Slow (over 3 s). bo: No answer. The time and final address are in the CSV.
- Limits
- Up to 100 unique domains a run without an account and 500 when signed in with Google. 10 domains a request; one timed GET of each home page. One reading varies between runs.
What does the check time?
One guarded GET of the bare domain's home page, https first and then http, up to five redirects and the first 128 KB. The time includes DNS, the TLS handshake and any redirects, measured from our server. Only public addresses on ports 80 and 443 are fetched.
One reading varies from run to run, and a visitor's distance and connection change it, so treat the label as a rough sort, not a benchmark.
Why time the websites on an email list?
A company site that takes several seconds to answer is sometimes a site on neglected hosting. It is a hint, not proof, and a domain used only for mail often has no website at all, so a row that could not be timed means little. A list of thousands of addresses has far fewer unique domains, so timing one home page per domain is cheap.
Free mail domains such as gmail.com are timed like any other, so those rows describe the provider's own site.
What do you do with the slow rows?
Look at them by company name and re-run them later, because a single slow reading can be a one-off. To see which sites answer at all, use the bulk email website status checker, and for whether a company looks gone, the bulk email dead company website checker.
Before you email anyone on the list, verify the addresses.
Who uses this tool, and for what?
- Sales teams
- Spot lead-list companies whose websites barely answer.
- Agencies
- Find prospects whose sites are slow enough to pitch a fix.
- Marketers
- Prioritise a list for a recheck before an import.
- Developers
- Triage a signup export for addresses at neglected domains.
What can’t this tool tell you?
- Reads the domain, never the mailbox: a website's speed says nothing about a particular address.
- One reading from our server, which varies between runs and is not what a visitor sees.
- A domain used only for mail often has no website, so a row that was not timed means little.
- Up to 100 unique domains a run without an account, 500 signed in. Free providers such as gmail.com are timed like any domain.
Common questions
- How do I time the websites behind an email list?
- Paste the list into a bulk email website response time checker like this one. It reads each address's domain and times one request to the home page.
- Is this bulk email website response time 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 a slow website mean the mailbox is gone?
- No. It checks the domain, not the mailbox. A slow site says nothing about whether mail to the domain works.
- How accurate is one reading?
- It is one request from our server, so it varies from run to run and from where a visitor sits. Use it to sort, not to benchmark.
- Why was a row not timed?
- The site didn't answer, answered an error, or refused automated requests. A domain used only for mail often runs no website.
- Does it send an email to the domain?
- No. It makes one GET of the home page and 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.