05/08/2026
See image. The bubble quote is mine, not the site owners. sarcasm intended to make a educational point, not to disparage the site owner..
A site owner can reduce this a lot, but they have to treat ads as a **security supply-chain problem**, not just “monetization.”
The practical steps are:
1. **Do not use low-quality open ad exchanges.**
The worst ads often come through cheap programmatic demand chains where the publisher does not really know the advertiser. A safer site uses direct sponsors, curated marketplaces, or a small allowlist of trusted demand partners.
2. **Block risky ad categories and advertiser URLs.**
In Google Ad Manager, publishers can create “Protections” to block categories and can block specific advertiser URLs/domains. That is exactly where a publisher should block fake PDF/download/update/driver/health-miracle style ads. ([Google Help][1])
3. **Manually review creatives, not just rely on the ad network.**
Google Ad Manager includes controls to review, allow, block, and report creatives, but the publisher still has to use those controls seriously. “Set it and forget it” is how these garbage ads survive. ([Google Ad Manager][2])
4. **Use an ad-security/ad-quality scanning service.**
Services such as Confiant scan ads and landing pages in real time and let publishers block malicious or low-quality creatives and entire categories. This is especially important because bad ads can be geo-targeted, cloaked, or shown only to certain users. ([Confiant][3])
5. **Use SafeFrame / iframe isolation where possible.**
Google’s SafeFrame renders creatives in a controlled iframe-like container, which helps prevent external ad content from accessing sensitive page data and gives the publisher more control over ad behavior. It does not make every ad safe, but it is better than letting third-party scripts run loosely on the page. ([Google Help][4])
6. **Maintain a “bad ad incident” process.**
The site should log the time, ad slot, creative ID, line item, advertiser domain, click-through URL, user country/state, browser, and screenshot. Without that, the publisher often cannot trace which third-party demand source served the bad ad.
7. **Publish and maintain `ads.txt`, and prefer partners that support `sellers.json` and SupplyChain Object.**
These standards help with transparency about who is authorized to sell the site’s inventory and how the ad transaction traveled through the supply chain. They do not fully stop malvertising, but they make the supply chain more traceable. ([IAB Tech Lab][5])
8. **Ban deceptive “download/open/continue” creatives by policy.**
Google has specifically warned about deceptive download buttons and social-engineering ads that mimic site controls. A publisher that allows a “Print Recipe — Open” style ad below a recipe page is asking for confused users to click the wrong thing. ([blog.google][6])
9. **Test the site like a normal visitor.**
Publishers should periodically load their own pages from clean browsers, mobile devices, different geographies, and non-admin accounts. Malvertising often targets only certain users, which is why the site owner may say, “I never saw that ad.”
10. **Accept lower ad revenue if necessary.**
This is the painful truth. The sleazier ad networks often pay better because they tolerate aggressive offers, fake buttons, scary claims, forced redirects, and borderline software downloads. A responsible publisher has to choose trust over maximum RPM.
For the screenshot you showed, the biggest red flag is not merely “third-party advertising.” It is the **fake document/download visual language**: PDF icon, “Print Recipe,” and a prominent **Open** button. That kind of ad can trick ordinary visitors into thinking it is part of the recipe site instead of an advertisement. Even when it is not a true zero-click exploit, it can still lead users into unwanted software, scam pages, browser notifications, or phishing. Google’s unwanted software policy specifically calls out software that tricks users into installation or behaves unexpectedly. ([Google][7])
My plain-English conclusion: a decent site owner can’t guarantee zero bad ads, but they absolutely can stop outsourcing all moral responsibility to ad networks. A publisher who cares should use stricter ad controls, block fake-download style creatives, monitor what visitors actually see, and be willing to lose some ad revenue rather than expose naïve readers to junk.
[1]: https://support.google.com/admanager/answer/2541069?hl=en... "Block sensitive categories - Google Ad Manager Help"
[2]: https://admanager.google.com/.../capabil.../brand-safety/... "Serve Safer Ads with a Strong Advertising Policy"
[3]: https://www.confiant.com/hubfs/reports/maq-2024.pdf... "Malvertising and Ad Quality Index"
[4]: https://support.google.com/admanager/answer/6023110?hl=en... "Render creatives using SafeFrame - Google Ad Manager ..."
[5]: https://iabtechlab.com/.../Implementation-Guide-buyers... "Buyers.json and DemandChain Object Implementation Guide"
[6]: https://security.googleblog.com/.../no-more-deceptive... "No More Deceptive Download Buttons"
[7]: https://www.google.com/.../unwanted-software-policy.html... "Unwanted Software Policy"
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