Cookie notice

Last updated: 16 October 2026.

The short version

This site itself sets no cookies. Google's advertising code does, and it runs on every page.

The calculator needs no cookie. It never has and it still does not.
We load Google AdSense to pay for the site, and with it Google's own consent message.
In the European Economic Area, the United Kingdom and Switzerland, that message asks you before personalised advertising data is used. You can refuse, and you can change your mind afterwards with the Cookie settings button at the bottom of every page.
Refusing does not break anything. The calculator works exactly the same.

What loads on this page

Two scripts come from outside this domain, both from Google, both on every page:

What	Where it comes from	Why
AdSense tag, publisher `ca-pub-0745848274612756`	`pagead2.googlesyndication.com`	Serves the advertising that funds the site
Google's consent message ("Privacy & messaging", also called Funding Choices)	Loaded by the AdSense tag	Asks for and stores your advertising choice where that is required

There is nothing else. No analytics product, no tag manager, no font loader, no social embed, no pixel from any other company. Everything else the page needs — the calculator, the stylesheet, the icon — is served from this domain.

Ads are not showing yet. The tag is live but no ad unit is switched on, because Google has not finished reviewing the site. The code that can set cookies is already there, which is why this page is written as it is. We would rather over-disclose than let you meet an undisclosed cookie.

Which cookies can be set

These are the cookies Google's own documentation lists for the products we run. Purposes and lifetimes are Google's, not our estimates.

Set from this domain (gradingcalculatoronline.com)

Cookie	Product	Purpose Google gives	Lifetime
`__gads`	AdSense	Advertising, security	13 months
`__gpi`	AdSense	Advertising, security	13 months
`__gpi_optout`	AdSense	Advertising	13 months
`__eoi`	AdSense	Security	6 months
`TESTCOOKIESENABLED`	AdSense	Functionality	60 seconds
`FCCDCF`	Consent message	Functionality — this is what remembers your choice	13 months
`FCNEC`	Consent message	Analytics	365 days

Set from doubleclick.net

Cookie	Product	Purpose Google gives	Lifetime
`id`	AdSense	Functionality, advertising, security	13 months in the EEA, the UK and Switzerland; 24 months elsewhere. Fixed to 9 November 2030 if you have opted out
`DSID`	AdSense	Identifies a signed-in user on non-Google sites	2 weeks
`test_cookie`	AdSense	Functionality	15 minutes

Google's cookie policy also names IDE and id as the cookies used to show Google ads on non-Google sites — IDE to personalise ads where personalisation is on, id to remember your choice where it is off.

Two honest limits on this table:

We do not control it. Google decides which of its cookies its code sets, and when. The list above is what Google documents today; Google can change it. If you want the authoritative version at the moment you read this, Google's advertising cookies page is the source and it is kept current.
We have not watched Google's script run. Our own release test blocks the real Google script and substitutes a stub, so it can check our page under the live security policy without calling Google. So the table is sourced from Google's documentation, not from cookies we observed ourselves. We tell you that rather than pretend to a measurement we did not make.

How to refuse, and how to change your mind

Where you are asked. In the EEA, the UK and Switzerland, Google's message appears with three options: Consent, Do not consent, and Manage options for a per-purpose choice. Google requires a certified consent platform integrated with the IAB Transparency and Consent Framework for personalised ads in those regions — since 16 January 2024 for the EEA and the UK, and 31 July 2024 for Switzerland. Google's own message, "Google LLC CMP", is certified for this; that is the one we use. We added no third company to the chain.

Changing your mind. Use the Cookie settings button at the bottom of any page. It reopens Google's own dialog, with the same three options. Google requires that a visitor can adjust their choice after the first answer, which is exactly what that button is for.

Refusing costs you nothing here. All four calculator modes run in your browser and need no cookie, no storage and no network call. Refuse everything and the arithmetic is identical.

What refusing does not do. It does not remove advertising from the site, and it does not stop your IP address being visible to the servers that deliver the page and the ads — that is true of any website. See the privacy statement for that part.

Blocking cookies in your browser

Browsers let you delete existing cookies, block new ones, and set a preference per site. Google's own page on this describes the Chrome settings in detail and notes that mobile browsers may give you less visibility into cookies. For any other browser, check its own settings documentation.

Blocking cookies on this domain will not affect the calculator.

What is not a cookie

Nothing you type is a cookie, and nothing you type is stored. Your points, grades, weights, targets and custom scale stay in the page while it is open and are gone when you reload it. The calculator writes no cookie, no localStorage, no sessionStorage and no IndexedDB entry.

Your IP address is visible to the services that deliver the page — Cloudflare, our reverse proxy, this site's web server — and now also to Google, which has to receive a request from your browser in order to send back its script. That is unavoidable and it is not a cookie. The privacy statement sets it out in full.

Questions

Write to [email protected] with "Cookies" in the subject line. See also the privacy statement and about this site.

Sources

What loads on the page: this site's own code. Every generated page in public/ carries the AdSense tag for publisher ca-pub-0745848274612756 and public/assets/consent.js; public/assets/integrations.json records adsense.enabled: true, adsense.adUnitsLive: false and consent.provider: google-funding-choices. Verified 16 October 2026.
Only those two external scripts, and the calculator makes no network call of its own: the release browser test records every request the page makes and asserts that the single external one is the AdSense tag. The same test stubs that script, so it proves what our page requests, not what Google's code then does. Verified 16 October 2026.
No cookie or storage written by our own code: read from the code, which contains no document.cookie, localStorage, sessionStorage or IndexedDB call anywhere. Verified 16 October 2026.
Cookie names, products, domains, purposes and lifetimes: Google, Our advertising and measurement cookies — the AdSense and Funding Choices rows, including the "partner domain" marking that means our own domain. Checked 16 October 2026.
IDE and id used to show Google ads on non-Google sites: Google, How Google uses cookies and How Google uses information from sites or apps that use our services. Checked 16 October 2026.
Consent required in the EEA, the UK and Switzerland, and publishers must identify their ad technology providers: Google AdSense Help, EU user consent policy. Checked 16 October 2026.
Certified consent platform required for personalised ads from 16 January 2024 (EEA, UK) and 31 July 2024 (Switzerland), and "Google LLC CMP" listed as certified: Google AdSense Help, European regulations overview and guidance. Checked 16 October 2026.
Three options in the message, and the requirement that a visitor can change an earlier choice through a revocation link or privacy settings: Google Ad Manager Help, About European regulations messages. Checked 16 October 2026.
The "Cookie settings" button reopens Google's dialog: public/assets/consent.js calls window.googlefc.showRevocationMessage(), and the release browser test clicks the button and asserts that call happens. Verified 16 October 2026.
Browser cookie controls: Google, How Google uses cookies — managing cookies. Checked 16 October 2026.