Bulk email website last-updated checker: when was each address's company website last touched?
In short: Paste email addresses and see the date hints on each company's home page, with the source of each hint in the CSV, one row per address. Limit: Reads the domain, never the mailbox: a website's date hints say nothing about a particular address.
A bulk email website last-updated checker reads the domain after the @ in each address and collects the date hints on its home page: the Last-Modified header, modified-time tags, structured-data dates and the copyright year. Paste up to 100 unique domains a run, or 500 signed in. Hints are not proof. It checks the domain, not the mailbox. Download the CSV.
Spotted the untouched sites? Check the mailboxes on the rest.
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 carries a modified date and a copyright year.
- Address
- tom@globex.example
- Newest dated hint
- 14 Aug 2026
- Source
- dateModified (structured data)
What this means for you
A date hint is not proof of when anyone last changed the site.
- Every hint with its source
- Newest dated hint on the row
- Sites with no date say so
- CSV out, nothing emailed
- Updated
- Headers
- CSV
By SimpleVerifier Team · Last updated
Got a list of company addresses and want to spot neglected sites?
- Paste it above to read the date hints on each company's home page, with the source of each hint 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 check when the websites behind an email list were last updated?
- Paste email addresses, one per line, or upload a CSV. Addresses are found anywhere in the text, so a whole export works.
- Press Look for update hints. Only the unique domains are sent, never the mailbox names, 10 a request: one GET of each home page from our server, no cookies, nothing stored. No mail is sent.
- Read each row: Date hints found, No date hints, or why the page could not be read, with the newest hint in the detail.
- Download the CSV with every hint and its source beside each address, and hand the list to the mailbox check.
Example
- You enter
- Four addresses:
jane@acme.example(a dateModified in structured data),tom@globex.example(only a copyright year),ana@initech.example(no date anywhere) andbo@umbrella.example(a site that doesn't answer). - You get
- jane: Date hints found, newest hint in the note. tom: Date hints found, latest year only. ana: No date hints. bo: No answer. The source of every hint is 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 GET of each home page, first 128 KB. Hints, not proof.
What does the check read?
One guarded GET of the bare domain's home page, https first and then http, up to five redirects and the first 128 KB. It lists the Last-Modified header, article:modified_time and og:updated_time tags, a JSON-LD dateModified and the newest copyright year in the page text. Each hint is named with its source. Only public addresses on ports 80 and 443 are fetched. The Last-Modified header is defined in RFC 9110.
None of these says when a person last changed the content: a header often shows when a server built the page, and many sites print the current year in the footer automatically.
Why check update hints on an email list?
A company site whose newest hint is years old is sometimes a company that has slowed down or closed. It is a hint to look further, not a reason to drop an address, and a site with no date at all is not necessarily stale. A list of thousands of addresses has far fewer unique domains, so reading one home page per domain is cheap.
Free mail domains such as gmail.com are read like any other, so those rows describe the provider's own site.
What do you do with the rows?
Look at the oldest hints by company name before you act. For a wider read of whether a company looks gone, use the bulk email dead company website checker, and to see which sites answer at all, the bulk email website status checker.
Before you email anyone on the list, verify the addresses.
Who uses this tool, and for what?
- Sales teams
- Put lead-list companies with fresh sites ahead of ones that look untouched.
- Marketers
- Prioritise an old list for a recheck before an import.
- Agencies
- Find prospects whose sites look due for a refresh.
- 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 date hints say nothing about a particular address.
- Only the first 128 KB of the home page and its headers are read.
- A hint is not proof: a header can show when a server built the page, and a copyright year is often printed automatically.
- Up to 100 unique domains a run without an account, 500 signed in. Free providers such as gmail.com are read like any domain.
Common questions
- How do I check when the websites behind an email list were last updated?
- Paste the list into a bulk email website last-updated checker like this one. It reads each address's domain and collects the date hints on its home page.
- Is this bulk email website last-updated 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 an old date mean the company is gone?
- No. It checks the domain, not the mailbox, and a date hint is not proof of when anyone changed the site. Treat an old one as a reason to look further.
- Why does a row say No date hints?
- The home page was read and carried no date in a header, tag, structured data or copyright line. That doesn't mean the site is stale.
- Why is the copyright year a weak hint?
- Many sites print the current year automatically, so it can be recent on a site nobody has edited.
- 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.