ABOUT
Who publishes WhichWarmup
WhichWarmup is published by Gwendal Goron, an independent publisher based in France, who is responsible for everything on it. The site is a documentary guide: it reads what vendors publish, records it in one registry with the date it was read, and helps you tell apart three jobs that get confused. It runs no mailboxes and no tests of its own.
Who is responsible for what you read here
One person publishes and maintains this site: Gwendal Goron, an independent publisher based in France. There is no editorial team, no panel of reviewers and no agency behind the name. Every page, every figure and every judgement on the site is his, and a mistake on any of them is his to correct.
We say this plainly because deliverability content is full of unnamed authority. If a page tells you what to buy, you are entitled to know who is talking and what they actually did. Here, the answer is: one publisher, reading public vendor documentation, writing down what it says, and marking clearly where the documentation stops.
What this site does
The site exists to answer one question before you spend anything: which problem do you actually have? Warming a mailbox, testing inbox placement and verifying a list are three different jobs with three different tools, and buying the wrong one is the most common way to waste a deliverability budget.
- It separates those three jobs and routes you to the right one, including the outcome where you should buy nothing.
- It records each vendor's published plans, prices and limits in a single registry, with the date the vendor page was read, and builds every price table from that registry rather than from prose.
- It explains how to read a placement report, how to run a pilot that proves something, and how to hand a client a report that survives questions.
- It states where the public evidence stops, which on this topic is early and often.
What this site does not do, and will not pretend to
What we really did
- Read each vendor's own pricing and feature pages and recorded them with a date
- Read the published sending and API limits at Google and Microsoft
- Built the diagnostic and the cost calculator, and checked their edge cases
- Written sample reports from scratch and labelled them as fictional on the page
What we did not do
- Run any warmup campaign, from any mailbox, on any domain of ours
- Buy, subscribe to or benchmark any of these tools against each other
- Measure deliverability, inbox placement or sender reputation ourselves
- Accept a vendor's private data, briefing or review copy in exchange for coverage
How the site is paid for
The plan is affiliate commission: when a tool has a partner programme, links to it carry a tracking parameter and a purchase can earn the site a commission at no extra cost to you. As things stand, none of the tools covered here has an active programme on our side, so every outbound link on the site is a plain link and earns nothing. The full position, including what changes the day one becomes active, is on the affiliate disclosure page.
What this does not buy: a place on a page, a better verdict, or a softer limit. The diagnostic can, and does, send you to the answer where you buy nothing at all.
How to check any of this
Nothing here asks for trust on credit. The claims are checkable, and here is where to check them.
| Claim | Where you check it |
|---|---|
| Prices come from the vendor, on a known date | The source ledger lists every vendor page we read and when |
| We ran no test of our own | Every sample report on the site carries a fictional label in its own header |
| No link is paid for today | Open any outbound link and look for a tracking parameter; there is none |
| The contact address is real | Write to it; a human answers |
Questions people also ask
Who writes WhichWarmup?
Gwendal Goron, an independent publisher based in France, and no one else. There is no editorial team behind the site. He is responsible for every page and for correcting anything wrong on one.
Have you tested these warmup tools yourself?
No, and the site never claims otherwise. We have not bought, run or benchmarked any of them. What we did is read what each vendor publishes and record it with a date. Sample placement reports on the site are written by us and labelled as fictional where they appear.
Do vendors pay you to be covered here?
No. Coverage is not for sale and no vendor has reviewed a page before publication. The site is built to earn affiliate commission on purchases, but no programme is active today, so the outbound links currently earn nothing. See the affiliate disclosure.