Bulk website response time checker: which sites on your list answer slowly?
In short: Paste a list of websites and time one GET of each home page from our server, with the HTTP status and the number of redirects, as a CSV. Limit: One request per site, so a reading is a signal, not a benchmark.
A bulk website response time checker sends one request to each home page and times the answer. Paste up to 100 websites, or 500 after a free Google sign-in; each row shows Fast under one second, Moderate or Slow over three seconds, with the status and redirects. It is a single reading from our server, so treat it as a signal. 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
acme.example answers in 300 ms; initech.example takes 4.2 s after two redirects.
- Site
- acme.example
- Response time
- 300 ms
- Redirects
- None
What this means for you
One reading from our server is a signal, not a benchmark; run a slow row again.
- Time covers DNS, TLS and redirects
- Banded Fast, Moderate, Slow
- Status and redirects shown
- A signal, not a benchmark
- Fast
- Slow
- CSV
By SimpleVerifier Team · Last updated
Cleaning a list of company sites before outreach?
- Paste the sites here: 100 a run, or 500 after a free Google sign-in. Filter to the slow or unread rows and download 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 the response time of many websites?
- Paste up to 100 sites, or 500 after a free Google sign-in, one per line; emails and URLs work too, and the domain is taken from each. You can also upload a CSV.
- Press Time the websites. Each home page is requested once, over HTTPS and then HTTP if HTTPS fails, five sites at a time.
- Read each row: Fast (under 1 s), Moderate (1 to 3 s) or Slow (over 3 s), with the exact time, the status and the redirects.
- Filter to the Slow rows, run them again to confirm, and download the CSV.
Example
- You enter
- Three sites:
acme.example(answers in 300 ms),globex.example(answers in 1.8 s) andinitech.example(answers in 4.2 s after two redirects). - You get
- acme.example: Fast (under 1 s), 300 ms. globex.example: Moderate (1 to 3 s), 1.8 s. initech.example: Slow (over 3 s), 4.2 s with two redirects. Download the CSV.
- Limits
- Up to 100 a run without an account and 500 when signed in with Google, counted over a minute. 10 sites a request; one GET of the home page from our server, no cookies, nothing stored.
What does the time include?
The clock runs from our request to the last byte we read, up to 128 KB of the page. It includes DNS, the TLS handshake and every redirect, so a site that redirects from http to https to www takes longer than one that answers directly. If HTTPS fails and HTTP answers, the failed attempt is counted too.
Our server is in one place, and a visitor's distance and connection change the result. One reading is a signal, not a benchmark. Run a slow row again before you act on it.
Why would a company's site be slow?
Cheap shared hosting, a heavy page builder, an unoptimised image on the home page or an overloaded server all show up as a slow first response. A site that answers in several seconds, or not at all, is sometimes a business that has stopped paying its hosting bill.
For a plain live-or-down check of every site, use the bulk website status checker. To see who hosts a site, use the website host checker.
What do you do with the slow rows?
If the sites are yours or a client's, look at hosting and page weight. If they are prospects, a slow site is a talking point for a web or hosting pitch.
Before you email anyone on a list, verify the addresses. A slow or dead site often goes with mailboxes that no longer exist.
Who uses this tool, and for what?
- Agencies
- Spot slow prospect sites before a pitch.
- Site owners
- Time several domains after a hosting move.
- Lead-list owners
- Flag sites that barely answer before you rely on the contact.
- Sales teams
- Find prospects with slow sites to open a conversation.
What can’t this tool tell you?
- One request per site, so a reading is a signal, not a benchmark.
- The time is measured from our server, not from your visitors.
- The page is not rendered; only the server's answer is timed.
- Up to 100 sites a run without an account, 500 signed in.
Common questions
- How do I check the response time of a website?
- Paste the site into a bulk website response time checker like this one. It sends one GET to the home page and shows how long the answer took.
- Is this response time checker free?
- Yes. 100 sites a run without an account, 500 after a free Google sign-in, with no card, and a CSV download.
- Is this the same as a page speed test?
- No. It times the server's answer to one request. It doesn't render the page or measure what a visitor sees.
- Why does the same site show different times?
- Network paths, caching and server load change from one request to the next. Run a slow row again before you rely on it.
- Does it follow redirects?
- Yes, up to five, and the time covers all of them. The row shows how many there were.
- Does a fast answer mean the site is healthy?
- No. It means the server answered quickly. The page can still be an error page or a placeholder.
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.