Safe for your brand.
Respectful of your readers.
Keystone gives you fast, precise control over where ads run, and keeps Babel's own measurement free of cookies and personal identifiers.
Respond to a policy flag in seconds, not a deploy cycle
When a page needs to stop showing ads, it shouldn't take a release.
Blocked pages
Block up to 10,000 exact URLs per site. Paste them, or upload a Google Ad Manager Policy center export as-is. It applies within seconds, and no ad request fires on those pages.
Linked domains
The tag only runs on the domains you own, so a copied tag does nothing anywhere else.
Page rules
Keep formats off whole sections with URL rules: only on these pages, or never on them.
Policy-safe In-Image
In-Image only requests ad sizes that fit the image natively. Nothing is scaled, and selector rules keep ads off galleries and widgets.
Error isolation
Every entry point is guarded, so the tag can't break the page it runs on.
Google Certified Publishing Partner
We work within Google's publisher policies every day, as one of a select group of certified partners.
One consent decision for every format
Consent is handled once, the same way, across the whole tag.
TCF v2, shared
All formats read one shared TCF v2 decision, with GPP for Prebid. Without consent, ads fall back to non-personalized.
Never stuck on a CMP
A 3-second safety timeout, and support for CMPs that answer in non-standard ways, mean your page never hangs waiting for consent.
Babel's measurement is cookieless
Our own reporting sets no cookies and stores no IP address or user ID.
Random per-pageview IDs
Each pageview gets a random ID, and a per-tab session counter lives in sessionStorage. It disappears when the tab closes.
Country without storing IPs
Country comes from a header added by Google's edge network. We never store the IP address.
Full disclosure
Some features you can switch on do store data. Here's exactly what:
- When header bidding runs, Prebid uses standard user-ID modules: SharedID, which sets a first-party cookie, and Criteo ID.
- If you track Ad Wall sign-ups, a click ID is kept in localStorage on your own domain for 30 days.
Questions from your
legal or ad ops team?
We're happy to go through consent, data and policy details with them.