This page describes what this site actually does, not what a privacy page usually says. One
measurement tool runs here — Google Analytics 4 — and it is the only thing on WattPair that
records anything about a visit. There are no accounts, no advertising, no session recorder,
and nothing you type in a calculator leaves your browser.
Everything that tool records is named below, with why it is recorded and how to stop it. This
page changed in the same release that switched the measurement on, which is the rule here:
the text moves first or with the thing, never after it.
What is collected today
Analytics
Google Analytics 4, property G-01Y1DJPFJ3, and nothing
else. It records the page you opened, the page that sent you (if any), rough device and
browser details, and an approximate location that Google derives from your network address
— Analytics 4 does not store the address itself, and there is no switch here that would
make it. It also records one event of ours, affiliate_click, when a retailer link on this site is
followed; that event carries three things, the retailer, the kind of page the link was on,
and which product it was for. No name, no email, no identifier you gave us, because you
never gave us one.
Why it is here at all
Two questions, and only two: which pages are read, and which retailer links are followed
from them. The first decides what gets written next; the second is how this site is paid
for, and knowing which pages earn nothing is what stops the library filling up with pages
nobody needed. It is not used to profile you, it is not joined to anything else, and there
is nothing here that could tell one reader from another beyond a random number in a cookie.
Cookies
Two, both written by that tool and both first-party: _ga and _ga_01Y1DJPFJ3. They hold a random number and a session
timestamp so that two page views can be recognised as one visit, and they expire on their
own about two years after your last one. Nothing else on this site sets a cookie, and no
cookie here holds anything you typed.
Why there is no cookie banner
Because a banner would be theatre rather than a choice. This site is written for readers in
the United States and runs no consent mode, so a banner here would appear after the tag had
already loaded and would change nothing about what was sent. What it has instead is a
refusal route that genuinely works, described in the next row — there is exactly one script
to block, and blocking it sends nothing at all.
How to refuse it
Any browser-level block stops it dead: content blocking or tracking protection in Firefox,
Safari and Brave, any content blocker or privacy extension, Google’s own opt-out
add-on, or simply switching JavaScript off. Every conclusion, number and source stamp on
this site is rendered on the server, so a page with scripting blocked reads exactly the
same as one without — you lose nothing by refusing. There is no fallback beacon and no
server-side copy: block the one request and there is no second route for it to take.
Third-party requests
One: googletagmanager.com, which is where that measurement script
is downloaded from. It is fetched after the page has finished loading, never before, so it
cannot slow down what you came to read. Everything else — fonts, styles, icons, every
asset — is served from this site. A link you decide to follow is a request you make; apart
from that one script, no page here fetches anything from another host to render itself.
Accounts
None. Nothing here asks you to register, and there is no password to lose.
Forms
Nothing you type is sent to a server of ours, because there is no server of ours to send it
to. The calculators run in your browser, the pickers use plain links and query strings so
that a result stays shareable with scripting switched off, and the submission page assembles
its block in the page itself — where that block can go afterwards is set out below. None of
it is passed to the measurement tool: what you selected in a calculator is not recorded
anywhere.
Advertising
None. No ad network, no retargeting tag, no data sold or shared for it.
The one thing that is recorded
The pages are static files served by a hosting provider, and like every web server it records
requests: the address requested, the time, the browser's user-agent string and the network
address it came from. That happens for any site you visit and it is not something this site
switches on or off. Those logs are the provider's, kept under their retention rules; they are
not used here to build any profile, and nothing on this site joins them to anything else.
Retailer links
Some links go to retailers, and if you buy after following one, WattPair may earn a commission
at no extra cost to you. Following such a link takes you out of this site: the retailer
typically records the referral, usually with a cookie of its own, and from that point its
privacy policy governs what happens — not this one. The reports we receive back are commercial
summaries: what sold and what it earned, not who bought it. We do not receive your name,
address, payment details or order contents.
If you write to us
A message you send is used to answer you, and where it corrects a published figure, to record
what changed and why. There is no mailing list here to be added to, and nothing you send is
passed to a manufacturer or retailer unless you ask for that. Ask and the message is deleted.
The state of the mailbox itself is on the
contact page.
If you submit a measurement
The submission page is open, and
it collects nothing. What you fill in is assembled into a text block by script running in your
own browser: the page sends none of it anywhere, keeps none of it, and has nowhere to keep it.
There is no endpoint behind that page — no form service, no upload, and nothing that reports
what you typed. The measurement tool described above runs on this page like any other and
records that the page was opened; it is never given the contents of a field, and there is no
second beacon that is. So a block exists only on your machine until you decide to deliver it.
The three delivery routes are not equivalent, and the difference is worth reading before you
pick one.
Copying the block
It goes to your clipboard and no further. Nobody here learns that you built one, and
nothing on this site records that you did.
The prefilled GitHub issue
This is the route that leaves. The button is an ordinary link, not a request the page makes
for you — nothing is transmitted while you fill the fields in. Follow it and you are on
GitHub, posting from your own GitHub account: what you post is public, it is hosted
by GitHub under GitHub’s terms and privacy policy rather than this page’s, and
removing it afterwards is something you do there, not something this site can do for you.
Whatever sits in the block travels with it, so put nothing in a note that you would not put
on a public forum.
Email
Open. A log sent to the address is a message like any other, and the paragraph above
governs what happens to it.
What is held, either way
Only what you chose to deliver, and only where you delivered it. A log under review is kept
for its figures and its test conditions; nothing about the submitter is looked up, bought or
joined to anything else, and a published reader log carries the log, not a profile of the
person who sent it.
What would change this page
If a second measurement tool is added
There is one, named above. A second one — a tag manager, a heatmap, a session recorder, an
A/B testing service, anything that watches — gets the same treatment in the same release
that ships it: named here, with what it records and what host it loads from, and added to
the list of things one browser block can switch off.
If a submission ever posts to a server
None does today: a block is delivered by hand, by you, to a place you picked. If that ever
changes — a form endpoint, a hosted service, anything that receives what you typed — it is
named here, with what it stores and for how long, before the first submission reaches it.
If anything else is ever set in your browser
The two cookies above are the complete list. A third one gets named here the same way, with
what it is for, how long it lasts and how to refuse it.
Your data, and what there is of it
There is no account to close, no profile to export and no advertising identifier to reset,
because none of them exist here. The measurement records above are not held by this site at all
— they are held by Google, keyed to a random cookie number rather than to you, and the way to
end them is to clear the two cookies and block the script, which takes effect immediately and
needs no request to anybody. A message you sent is the only thing this site holds that is
about you, and asking for it to be deleted is enough to have it deleted. One limit on that is
worth stating plainly rather than leaving you to discover it: an issue you opened on GitHub is
yours and lives in your GitHub account, so it is edited or deleted there — this site can stop
using what it contains, and cannot unpublish it for you.
This page does not claim a certification or a compliance programme it does not have; it
describes what the site does. If the site starts doing more, this text changes first and the
date at the top changes with it.