Legal
Privacy Policy
Last updated: 31 August 2026
The short version: we don’t have accounts, and your ring measurements are calculated on your own device and never sent to us. We use Google Analytics to count page views, which sets a cookie. The site is also preparing to carry advertising and affiliate links — sections 3, 4 and 5 say exactly what each of those collects, what it cannot see, and how to switch it off. The long version explains the rest.
1. Who this applies to
This policy covers onlineringsize.com and every page on it, operated by Online Ring Size (“we”, “us”). It describes what happens to information when you use the ring sizer, read the guides, or send us a message.
2. What we do not collect
We want to be specific rather than reassuring, because “we value your privacy” means nothing. The site does not:
- ask you to create an account, or accept one from anywhere else;
- run session recording, heatmaps, or scroll and mouse tracking;
- ask for your name, address, or payment details anywhere except the contact form, where you type them yourself;
- send anything you measure to us, to an advertiser, or to anyone else — see section 6;
- sell your personal information for money, or hand your details to a data broker.
That last point deserves one piece of precision rather than a comfortable phrase. We do not sell anything about you. But some US state privacy laws — California’s among them — also treat showing you personalised ads as “sharing” for cross-context behavioural advertising, because the ad network sets its own cookie in your browser. If that is a line you don’t want crossed, section 4 has the single control that turns personalisation off, and the site works identically with it off.
Three things on this site talk to another company’s servers, and nothing else does: the analytics tag in section 3, the advertising described in section 4, and the contact-form relay in section 9. The page’s own layout, type and images are served from this domain. You can confirm all of that in your browser’s network inspector.
3. Analytics
We use Google Analytics 4 to count page views and see which pages people actually use, so we know what to improve. It is worth being exact about it rather than hiding it behind a phrase like “we use cookies to improve your experience”.
Every page loads gtag.js from Google’s servers, and that script sets two first-party cookies in your browser, named _ga and_ga_<property>. They hold a randomly generated number, nothing else. Its only job is to let Google tell a returning visit apart from a new one; it is not your name, and it is not linked to any account.
For each page you open, Google receives:
- the address of the page and the page that referred you to it;
- an approximate location — typically country or city — that Google derives from your IP address;
- your device type, operating system, browser, language and screen size;
- that random identifier, and the time of the visit.
Google processes this on our behalf and shows us aggregate reports: how many people read the size chart last week, and which countries they were in. We cannot see individuals in it, and we never send it anything you typed or measured. Google holds the underlying event data for the retention period configured on the property and deletes it after that. Google’s own handling is governed by itsprivacy policy.
If you would rather not be counted, any of these works and none of them breaks the site: block cookies for this domain in your browser settings, use a tracking blocker or a browser that includes one, turn on “Do Not Track” in a browser that acts on it, or install Google’sopt-out add-on. The ring sizer runs entirely in your browser and works exactly the same with the analytics script blocked — nothing here is gated behind being measured.
4. Advertising
Status, as of 31 August 2026: there are no ad slots on the site yet. This section is published before they appear rather than after, because a policy that catches up later is not a policy. When advertising is live, everything below is what happens.
The site is funded by display advertising served through Google AdSense. Ads sit in their own slots, marked as advertising, and are sold by Google rather than chosen by us — we do not pick the advertisers, and no advertiser has any say over the sizes, charts or guidance on this site. Section 5 covers the separate question of affiliate links.
Third-party vendors, including Google, use cookies to serve ads based on your prior visits to this website or other websites. Google’s use of advertising cookies enables it and its partners to serve ads to you based on your visit to this site and/or other sites on the internet. These are set by the ad network in your browser, and are separate from the analytics cookies in section 3 and the local storage in section 7.
To choose an ad to show you, the ad network can see:
- the address of the page the ad is on, and its general subject;
- an approximate location derived from your IP address, plus your device, browser and language;
- whatever its own cookie already records about pages you have visited elsewhere.
It cannot see anything you measure. The sizer runs in your browser and never transmits a calibration, a finger size or a result — not to us, and not into an ad request. Nothing you type into the contact form reaches an advertiser either.
To turn personalised advertising off, use Google’sMy Ad Center, which controls this across every site that uses Google’s ad network, not just ours. To opt out of a wider set of vendors at once, useaboutads.infoor, in Europe,Your Online Choices. A tracking blocker or a browser that blocks third-party cookies works too. Google’s own explanation of how it uses data in advertising is in itsadvertising technologies notice. Opting out means you see non-personalised ads rather than none; it does not change how the sizer works.
If you are in the EEA, the UK or Switzerland, you will be asked for consent before any advertising or analytics cookie is set, through a consent form that also lets you refuse. Refusing is a real option, not a maze: the ring sizer, the charts and every guide work in full without it, because none of them depend on being tracked. You can reopen that form at any time to change your answer.
5. Affiliate links
Status, as of 31 August 2026: there are no affiliate links on the site yet. As with section 4, this is here in advance of the first one.
Some links to jewellers and retailers may carry a tracking code, so that if you buy something after following one, we receive a small commission from the retailer. It costs you nothing — the price is the same as it would be if you had typed the retailer’s address in yourself.
Following one of those links sets a cookie in your browser belonging to the retailer or its affiliate network, recording that you arrived from here. What happens after you land on their site is governed by their privacy policy, not ours. What we get back is a monthly report of totals: how many orders came from the site and what commission is due. It does not contain your name, your address, or what you bought, and we have no way to connect a sale to a visitor.
What this does not affect is the numbers. Every size and conversion on this site is computed from published national standards, and no commission changes a millimetre of it. We will not adjust a chart, a recommendation or a confidence range because a retailer pays us. Affiliate links are marked where they appear, and if you would rather not use one, going to the retailer directly reaches exactly the same product.
6. Your measurements never leave your device
The ring sizer is a program that runs inside your browser. When you calibrate your screen, adjust a circle, or read off a size, that work happens on your device. No measurement, calibration value, finger size, or result is transmitted to us or to anyone else. There is no upload step, and there is nothing about your hands on our end to disclose, subpoena, breach, or delete. The analytics tag records that a page was opened and the ad slots record that a page was opened; neither can see what you measured on it.
7. What is stored on your own device
So you don’t have to start from scratch each visit, the site saves a few values in your browser’s local storage. This is separate from the analytics and advertising cookies above: local storage lives on your computer or phone, is never attached to a network request, and is not sent to us, to Google, or to any advertiser.
| Name | What it holds | Why |
|---|---|---|
| ors.calibration.v1 | Your screen scale in pixels per millimetre, which reference object you calibrated with, whether you verified it with a second object, how far apart the two readings were, when you saved it, and a short fingerprint of your screen dimensions used to detect that you've switched display or zoomed. | So you don't have to recalibrate every visit, and so we can warn you when a saved scale is no longer valid. |
| ors.theme | Whether you chose the light or dark theme. | So the page renders in your chosen theme on the first frame, without a flash of the wrong one. |
| ors.locale | The language you last picked from the language switcher. | So the site can offer you that language again. |
None of it identifies you. You can remove all of it at any time by clearing site data for this domain in your browser settings, or by using the sizer’s own “Start over” control, which deletes the saved calibration. Private or incognito browsing discards it when you close the window. If storage is blocked, the sizer still works — it just won’t remember your calibration.
8. Your language and device
Your browser tells every website it visits which languages you prefer and how large your screen is; this is a normal part of how the web works, not something we install. We read those values in your browser to suggest a language and to offer a starting screen scale for recognised device models. They are used on your device, in the moment, and are not recorded or sent anywhere.
9. When you send us a message
The contact form is the one place where you deliberately give us information. When you submit it, the name, email address, topic and message you typed are transmitted so we can read and answer them.
Because this site is static and has no mail server of its own, the submission is passed through a third-party form relay (Web3Forms), which forwards it to our inbox. That provider processes what you submitted in order to deliver it, under its own privacy policy. We use your address to reply to you and for nothing else: no mailing list, no marketing, no advertising, and no passing it on. Correspondence is kept only as long as it is useful for handling your query.
Please don’t put anything sensitive in the message box. It is an email form, not a secure channel.
10. Hosting and server logs
The pages have to be delivered to you by a hosting provider, and like essentially every web server, ours records standard request logs — typically the IP address that made the request, the time, the page asked for, and the browser’s user-agent string. These exist for security and reliability (spotting abuse and outages) and are handled by the hosting provider under its own terms. We do not use them to build profiles, and we do not combine them with anything else on this site.
11. Children
This is a measuring tool with no accounts, so we hold nothing that identifies anyone, including children. We do not knowingly collect personal information from children, and the contact form is the only place any personal information can be submitted at all. The analytics in section 3 count page views and cannot tell us the age of the person reading, and the site is not directed at children.
12. Your rights
Data protection law — including the GDPR in the EU and UK — gives you rights to access, correct, delete, restrict, and object to the processing of your personal data, and to complain to your national supervisory authority.
In practice these rights are straightforward to exercise here, because there is very little to exercise them against. The only personal data we hold directly is a message you chose to send us — ask us to delete your correspondence and we will. The analytics data is a random identifier and an approximate location held by Google on our behalf, with no name attached. The advertising data is held by Google as its own controller rather than on our behalf, so requests about it go to Google throughyour Google account controls; clearing the cookies for this domain and using the opt-outs in section 4 severs the link to your browser. Everything else the site saves is on your device, under your control, and removable by clearing your browser data — we could not access it if we wanted to.
13. Changes to this policy
If the site changes in a way that affects this policy — analytics, advertising, affiliate links, or any feature that sends data to a server — this page will be updated before that change goes live, and the date at the top will change with it. We won’t quietly start collecting something and amend the policy afterwards. Sections 4 and 5 are that promise being kept: they were written before the first ad and the first affiliate link, not after.
14. Contact
Questions about this policy, or a request about your data, go through the contact form — pick “Privacy or data request” as the topic and it reaches the right place.