5 Best Proxies for Ad Verification in 2025

Ad verification is the process through which brands ensure that ads are correctly displayed, aligned with their intended placement, and protected from fraud schemes like cloaking or bot-driven impressions. However, verifying ads from a single server or datacenter IP can be easily spotted and blocked. But with residential and mobile IP proxies that mimic real users' browsing behavior, brands can see what a real visitor would. 

In this guide, you will get an actionable list of the 5 best proxies for ad verification with a table that breaks down their strength, coverage, and pricing.  

Why Use Proxies for Ad Verification?

Proxies allow brands to test campaigns from the perspective of real users on particular devices, regions, and networks. This helps to safeguard important KPIs that help to keep brands safe, such as cloaking detection, redirect chain visibility, landing page compliance, and geo/device targeting validation. 

Which Proxy Types Work Best in 2025?

When it comes to ad verification, each proxy type has its trade-offs, and a choice of the right mix is important for accurate and scalable testing. 

• Mobile Proxies: This proxy type offers brands realism as it routes through real 4G/5G devices and carriers, suitable for rotating 4g proxies use cases. Mobile proxies often face fewer blanket blocks on some targets due to CGNAT collateral, although effectiveness varies by site and setup. The speed is slower, and users may incur higher costs compared to other proxy types.
• Residential Proxies: This provides authentic consumer IP footprints and is ideal for broad, city-level targeting and high unblock rates. Rotating speed and costs can be higher than datacenter proxies. 
• Datacenter Proxies: This offers the lowest form of realism, although it is fast and inexpensive. Datacenter proxies are best for low-risk surfaces because of the higher possibility of detection. 
• ISP/Static Residential Proxies: IPs here are assigned by ISP, and often routed via data centers; details may vary by vendor. They are also able to maintain residential legitimacy because of their long-term stability.

What are the Best Proxies for Ad Verification?

Here is a list of the top 5 proxy providers for ad verification. The list was curated after considering geographic diversity, anonymity, speed, reliability, scalability, transparency, and compliance. 

• Live Proxies
• Oxylabs
• SOAX
• IPRoyal
• ProxyEmpire. 

1. Live Proxies

Live Proxies helps replicate what real users see across residential and mobile networks with country-level location options, sticky sessions, and dynamic IP rotation, ideal for QA, localization checks, and ad verification using rotating proxies. The provider offers multiple proxy options, including rotating proxies, private proxies, static residential, and mobile residential.

It provides ready-to-buy mobile and residential plans for B2C, as well as customized enterprise solutions for B2B, making it a flexible choice for brands. Live Proxies emphasizes flexibility and scalability with seamless integrations for enterprise workflows. Sticky sessions (up to about 60 minutes, depending on plan) support uninterrupted user-journey tracking. Plans advertise no concurrency limits and rotating endpoints for broader sampling.

Dynamic IP rotation refreshes addresses throughout the day, improving diversity and reducing blocks. With HTTP/HTTPS support, continuous rotation, and 24/7 live support, Live Proxies offers a reliable option for ad verification. 

2. Oxylabs

Oxylabs platform offers residential, ISP, mobile, and both shared and dedicated datacenter proxies. The platform provides flexible rotation settings, session control, and 24/7 customer support. With Oxylabs, users can validate flows across multiple regions and devices, access compliance resources, and achieve geo-accurate placements.

3. SOAX

SOAX emphasizes transparent IP sourcing and pool quality while offering rotating residential, ISP, datacenter, and mobile proxies. The platform provides flexible rotation controls, an intuitive dashboard, and 24/7 support. 

SOAX enables city-level and ASN targeting for ad verification, with configurable sticky sessions to track user journeys. Its interface is designed for ease of use, and IPs are refreshed regularly to maintain quality and reduce blocks.

4. IPRoyal

IPRoyal offers competitively priced residential, ISP, mobile, and datacenter proxies, making them suitable for smaller teams or pilot projects. The platform provides rotating IPs and configurable sticky sessions with coverage that includes country- and city-level targeting. A centralized dashboard allows users to set limits, monitor bandwidth, and manage access from one place.

5. ProxyEmpire

ProxyEmpire offers residential, mobile, and datacenter proxies suitable for automation and market research use cases. The network is ethically sourced and spans more than  170+  countries with over nine million IPs. Residential proxy plans include VIP integration support, while static residential proxies allow users to keep the same IP for extended periods without compromising stability. 

How Do You Choose a Proxy for Ad Verification (Quick Framework)?

Before you select a proxy solution, consider the following factors:

• Use Case Surface: What specific area do you intend to put the proxy to use? Display and search ads require broad and reliable coverage, while mobile carrier-specific proxies are ideal for in-app and social ads.
• Geo Depth: For high-level campaign checks, country-level geo depth will suffice. However, for mobile-focused audits and localized compliance, city-level or ASN is ideal. 
• Session Length: Where the use case is spot checks and fraud detection, the use of rotating proxies is encouraged, while long and sticky sessions are needed for tasks like journey QA. 
• Scale: When the use case is a weekly or periodic check, use sampling cadence, but always-on for continuous monitoring.                    

Setup: From Brief to Verified Proof

To run an effective ad verification workflow, here is a structured playbook that would help you keep audits not only credible but consistent. 

• Define coverage needs by cities, markets, and device types (desktop, mobile web, in-app).
• Choose between per-request rotation and sticky sessions depending on the use case.
• Automate browser rendering, capture HAR files, and enable logging for ad creatives preservation.
• Run the same matrix through two proxy providers to check for discrepancies.
• Assemble a package of HAR files, screenshots, as well as HTTP headers for each run.
• Ensure you highlight unusual placements and escalate them to the right team for corrective actions. 

Common Challenges and Fixes

Common challenges that brands may face while running ad verifications are blocks and CAPTCHA, geo drifts, cost creep, session drops, as well as policy and compliance issues. Platforms can detect automation and block access or even trigger CAPTCHA. In cases like this, you may need to switch to residential or mobile IPs, add rendering equivalents, and rotate more frequently. 

Geo drift occurs when the reported location does not match the intended market. When this happens, results may be skewed. A quick fix for this is to tighten targeting to the city level or carrier-specific IPs. Additionally, an IP change may result in a long ad journey break, so it's best to use ISP or static residential proxies during sticky sessions to prevent this.

Other problems that brands may encounter while utilizing proxies in ad verifications are high traffic volumes resulting in higher cost implications, and misalignment with data privacy laws and the provider’s TOS. In the case of the former, implement throttling and sampling cadence. The latter will require you to review terms of service, source IPs ethically, and maintain compliance. Ensure you seek legal counsel whenever in doubt. 

Comparison: Who’s Best for What?

Each proxy provider has their unique strengths based on your use case. Live Proxies offers premium reliability and sticky sessions that are up to 60 minutes. Proxies from this provider provide high-quality audits and are best suited for enterprise and use cases where stability is a priority. 

Oxylabs, however, is ideal for enterprise-grade scale, while SOAX offers fine city and carrier-level controls, making it suitable for granular geo-targeting. A provider like IPRoyal is best for brands on a strict budget, while ProxyEmpire offers strong multi-geo coverage with both rotation and sticky session options.

Conclusion

The demand for accurate, scalable, and ethically sourced proxies for ad verification continues to grow as ad fraud becomes more sophisticated. While the providers reviewed in this article each have their unique strengths, the best choice depends on your specific use case. To ensure that your verification efforts are effective, prioritize providers that offer high-quality proxy, compliance, and success rates. 

FAQs

What's the best proxy type for ad verification?

For realistic user behavior that would be difficult to detect, use mobile or residential proxies. When you need session persistence or consistency, pick ISP/ static proxies, while a datacenter is cheaper and high scale, but can be easily detected. 

Do I need carrier/ASN targeting?

Yes, you need carrier targeting when ads are delivered in carrier-locked environments, or placements are ASN-specific. 

How many IPs do I need per market?

The number of IPs you need depends on the market size and channel. You might want up to a dozen IPs when dealing with high-volume channels or large markets, and a handful for smaller markets. Ensure your sampling cadence captures enough variation in placements/devices to reliably detect anomalies. 

Can datacenter proxies work for verification?

Yes, datacenter proxies can work for low-risk surfaces like public web display/search ads, but for in-app or mobile ads with strong bot/proxy detection, you’ll face more blocks unless you combine with ISP/residential. 

How do I stay compliant and ethical?

Always check the provider’s terms of service and ensure IP sourcing is legal and ethical. Additionally, respect platform policies to avoid violations and seek legal counsel when in doubt. 

What’s a fair vendor test?

Run the same geo/device matrix through multiple vendors under the same rotation/session settings and compare results. Ensure you capture proof to help verify what's rendered and identify any missing or blocked assets.

How do I control costs?

Use sampling rather than full coverage when possible and reduce frequency where risk is lower to minimize costs. 

Do I need CAPTCHA/unlocker tooling?

Yes. You need CAPTCHA/unlocked tooling if you're targeting surfaces known for aggressive bot detection or protection. If not, residential/mobile proxies with good rotation plus browser rendering should suffice.