Ad verification proxies let you load your own campaigns the way a user in the targeted place would. The job is checking what actually shipped: the creative, the geo-targeting, the placement, the landing page and whether the impression looks real. Ad networks place ads by location, and Google calls its own location targeting best effort with no 100% accuracy. We read the sellers' pages on October 26, 2026. Residential pools with ISP or ASN targeting cost $0.99 to $8.00 per GB at their smallest purchase. Our Premium pool targets state, city and ASN from $1.49/GB, and our mobile proxies on carrier networks cost $1.50/GB per GB.
We come at this from two sides. We sell residential and mobile proxies, and we also run FFraud, a free service that scores IP addresses for fraud and abuse. The sections below cover what to check, why the place of the check matters, the ad networks' own rules, and which proxies fit.
What does ad verification check?
Whether a live campaign matches what you bought. Five checks cover most of it:
- The creative renders. A delivered impression in a dashboard says nothing about a broken image or a blank frame.
- Geo-targeting worked. An ad bought for Germany should appear in Germany and nowhere you did not pay for.
- The placement is safe. You need the publishers and page contexts where the ad really landed.
- The landing page matches. In affiliate channels especially, the page a user reaches can differ from the one you approved.
- The impression is real. Bots, hidden ads and spoofed domains bill you for attention that never existed.
Each check needs the ad seen in the wild, as a member of the target audience sees it. That is what turns verification into a proxy question. Survey research has the same need, which is why survey proxies use the same residential addresses on questionnaires.
Why does the place of the check matter?
Because ads are placed by location. Google Ads lets advertisers target countries, areas within a country, and a radius around a location. It decides who matches "based on a variety of signals, including users' settings, devices, and behavior". Google calls this its "best effort" and says "100% accuracy is not guaranteed in every situation".
So a check from your office shows the ads aimed at your office. A campaign for iPhone users in Jakarta needs a check from a mobile exit in Indonesia. That is the segment the ad server treats as the audience. Checking it from a desktop in Frankfurt may show a different creative, or none.
| What you verify | Who you must look like | Proxy type |
|---|---|---|
| Creative and geo | A user in that country | Rotating residential |
| Mobile and in-app | A handset on a carrier | Mobile |
| Affiliate landing pages | A buyer from the ad | Residential or mobile |
| Placements at scale | Many ordinary visitors | Rotating residential |
| Search ads by country | A local searcher | Residential, by country |
What do the ad networks' own rules say about cloaking?
They ban it. Google's ad policies do not allow "ads, content, or destinations that attempt to trick or circumvent our ad review processes". They also ban "manipulation of ad components like text, image, videos, domain, or subdomains in an attempt to bypass detection or enforcement action". Google suspends such accounts "upon detection and without prior warning".
Verification is how a brand finds that cloaking in its own channels. A cloaker reads who is visiting and can show a clean page to a reviewer while real visitors get another. Our IP lookup at FFraud flags signals such as datacenter, VPN and proxy addresses, and a cloaker can read the same kind of signal. An exit that carries those flags may be shown the clean version.
The industry has its own tool against spoofed inventory. IAB Tech Lab's ads.txt and app-ads.txt let publishers declare who may sell their ad space. The Lab calls ads.txt "a tool to reduce fraud in buying and selling of advertisements". A verification run that loads the page complements that list with what a visitor actually sees.
What are the best proxies for ad verification in 2026?
The best fit targets the city, ISP or ASN your campaign aims at, plus carrier networks for phone campaigns. We read each seller's own pricing page on October 26, 2026:
| Seller | Price per GB, Oct 26 | Why it fits ad checks |
|---|---|---|
| HProxy Premium | $1.49/GB from 1 GB | state, city and ASN |
| HProxy Mobile | $1.50/GB from 1 GB | carrier IPs by country |
| Evomi | $0.99 from 15 GB | city, region and ISP |
| Rainproxy | from $2.98 on its Exclusive pool | city and ASN |
| Decodo | $3.75 at 3 GB to $2.75 at 100 GB | city, ZIP and ASN |
| Bright Data | $8, or $4 with a code | ZIP and ASN, companies only |
Network targeting is where entry prices spread most:
Bright Data's documentation opens its residential network only to verified companies. Our mobile pool targets by country and offers no choice of carrier. One seller's ad verification guide closes on "from $0.10/GB". In our price records, that rate belongs to a non-geo plan of 25 TB a month, which a check by city cannot use. Our best residential proxies comparison sets ten sellers side by side.
How do you keep verification running?
Sample every market and device you buy, on a schedule, and keep each exit to the pace of an ordinary visitor. Campaigns change, publishers rotate placements, and a cloaker may change its page once it suspects it is watched. A single country on one device may need a handful of checks a day. Twenty markets on desktop and mobile need a rotating pool that covers all of them.
Hold a sticky session when a check follows one flow, from the ad click to the landing page. Our explainer on rotating and static residential proxies covers that choice. The request habits in avoiding IP bans and our web scraping guide apply too.
What does HProxy offer for ad verification?
Residential Premium targets by state, city and ASN with sticky sessions up to 24 hours. It costs $1.49/GB for one GB, down to $1.00/GB at 1,000 GB+. Mobile proxies run on 4G and 5G carrier addresses at $1.50/GB per GB, rotating or sticky up to 7 days. Both bill by the GB, and the balance never expires. Our pricing page lists every product.
What this page could not check
- No test of any network. We measured no speed or success rate at any seller, ours included, and verified no campaign.
- No fraud total. We could not read the original ad fraud estimates, so this page gives none.
- Sellers as printed. The seller table repeats what each pricing page printed on October 26, 2026. We bought from none of them.
- Targeting is best effort. Google gives no accuracy figure for its location targeting.
- Check by January 26, 2027. Prices and policies change, and every figure here needs a fresh read by then.
Sources
- Google Ads Help, Target ads to geographic locations, read October 26, 2026.
- Google Advertising Policies Help, Abusing the ad network, read October 26, 2026.
- IAB Tech Lab, Authorized Digital Sellers with ads.txt and app-ads.txt, updated September 14, 2026, read October 26, 2026.
- FFraud, homepage, read October 26, 2026.
- Evomi, Rainproxy, Decodo and Bright Data, residential pricing pages, read October 26, 2026.
- Bright Data documentation, Residential network access, updated September 1, 2026, read October 26, 2026.
- HProxy price records: Shifter's residential plans, captured September 27 and October 22, 2026.
- HProxy, residential and mobile product pages, read October 25 and 26, 2026.
