IP Proxy Registered in Germany, but Facebook Sees Netherlands: Geo Verification Across 5 Databases

You purchased a proxy with geo in Germany, but Facebook Ads or Wildberries suddenly identify the IP as Dutch or even as "unknown country." This is one of the most common reasons for targeting failures, account bans, and suspicious activities on accounts. We explore why this happens and how to verify geolocation across five main GeoIP databases to avoid wasting budget and burning accounts.

Why IP "confuses" countries: reasons for discrepancies

The geolocation of an IP address is not a fact, but a prediction. Each GeoIP database stores the correspondence of address ranges to countries/cities, but updates this data with varying frequency and from different sources: registration data from RIPE, ARIN, APNIC, data from telecom operators, autonomous systems (AS), and sometimes outdated caches. Hence the discrepancies.

Here are the main reasons why a proxy provider claims "Germany," but in practice, the service identifies "Netherlands" or "unknown":

• Upstream Internet provider — the datacenter may physically be located in Germany, but the IP block is leased from a transit provider in the Netherlands, and it is registered in RIPE under that provider.
• Outdated GeoIP databases — the block of IP addresses may have been resold or moved to another owner, and the database updates its record every few weeks or months.
• Mobile IPs and operator roaming — mobile operators often route traffic through central nodes in neighboring countries, which is why a mobile proxy with a "German" SIM card may show a Dutch or Polish IP.
• CDN and load balancers — when exiting through a provider using anonymizers or proxy chains, the final IP may differ from the entry point.
• Different database methodologies — some databases rely on registration data (WHOIS), others on actual geolocation through tracing and latency, while others use machine learning based on user behavior.

This is why a single check on one site proves nothing. You need to verify against at least 3-5 independent databases to understand the real picture and risks.

5 GeoIP databases to verify geo

Advertising platforms and marketplaces use different sources of geodata to determine the user's location. Facebook Ads, TikTok Ads, Wildberries, and Ozon may rely on their own internal databases, but they are almost always based on data from large commercial GeoIP providers. Here are five that you should definitely check.

Database	Feature	Where used
MaxMind GeoIP2	The most widely used commercial database, updated weekly	Many advertising platforms, anti-fraud systems
IP2Location	Actively used in e-commerce and billing systems	Marketplaces, payment systems
IPinfo.io	Provides data on ASN, operator, and type of IP (hosting/mobile/residential)	Anti-detect browsers, traffic analytics
DB-IP	Free and paid versions, decent accuracy in Europe	Small services, verification scripts
Ipregistry	Combines GeoIP with risk and reputation data for IP	Anti-fraud systems, payment scoring

If all five databases agree on one country, the risk is minimal. If 3 out of 5 show one country while 2 show another, this is a "gray area": the advertising platform or marketplace may determine the location as a neighboring country, which is critical for geo-specific offers.

How to check a proxy before launching a campaign

Checking geo should be as mandatory a step as checking for WebRTC or DNS leaks. Here’s a step-by-step algorithm for those who work without code.

1. Connect the proxy in an anti-detect browser — in Dolphin Anty, AdsPower, GoLogin, or Octo Browser, create a profile and insert the proxy data (IP, port, username, password) in the profile settings.
2. Open an IP verification service — go to whoer.net or iplocation.net. These services automatically check several databases simultaneously and show a summary table.
3. Check IPinfo.io separately — this service provides data not only on the country but also on the type of IP (residential, hosting, mobile), which is important for anti-fraud systems.
4. Verify with MaxMind through built-in tools — some anti-detect browsers (e.g., AdsPower) already display MaxMind data directly in the profile interface.
5. Record the result — if 4-5 databases show one country, the proxy can be used. If there is a large discrepancy, it’s better to request an IP replacement from the provider or take another pool.

It is also important to check for DNS leaks and WebRTC leaks — even with the correct geo IP, a leak of the real address through WebRTC will reveal the actual location of the device, making the entire database verification pointless.

Residential vs datacenter proxies: which has more accurate geo

The accuracy of geolocation directly depends on the type of proxy. Datacenter IPs belong to hosting providers and cloud platforms, so their association with a country is often determined by the legal address of the company owning the block of addresses, rather than the physical location of the server. This leads to frequent discrepancies: a server in Germany, but the IP block is registered to a Dutch company.

Residential proxies use IP addresses assigned to real users through home internet providers. Such addresses are tied to a specific region much more accurately because the provider physically services subscribers in that country. For tasks where geo accuracy is critical — targeting Facebook Ads in a specific country, checking local price listings on Wildberries or Ozon — residential proxies are more suitable, as they less frequently show discrepancies between GeoIP databases.

Mobile proxies occupy an intermediate position: they are tied to the cellular operator's network, but routing traffic through central nodes sometimes "blurs" the accuracy to the level of a region or neighboring country. For arbitrageurs working with Facebook Ads and TikTok Ads, mobile IPs remain the preferred choice due to the low percentage of bans, but before a large-scale launch, it’s worth checking a specific pool against all five databases. If the task is quick parsing or one-off actions without a strict tie to precise geo, datacenter proxies can be considered — they are cheaper and faster, but require additional verification before use in geo-sensitive tasks.

What are the risks of incorrect geo for arbitrage, SMM, and e-commerce

Geo discrepancies are not an abstract technical problem but a direct hit to business metrics. Let’s break it down by segments.

Arbitrageurs (Facebook Ads, TikTok Ads, Google Ads). An ad account is created under geo in Germany, but the anti-fraud system identifies the entry as a Dutch IP. This triggers identity verification, account blocking, or document verification requests. When scaling account farming through anti-detect browsers, a geo mismatch in 10-15% of profiles can collapse the entire pool due to chain bans.

SMM specialists. When managing 20-30 Instagram or TikTok accounts for clients from different countries, a geo mismatch causes suspicious activity — an entry "from another country" triggers a request for confirmation via SMS or email, and sometimes a temporary profile block until clarification.

Marketplace sellers. When monitoring prices on Wildberries or Ozon with incorrect geo, you can receive distorted results — prices, product availability, and even currency may differ from actual figures in the target region, rendering analytics useless.

Marketers. When testing localized advertising (A/B tests by regions), discrepancies in GeoIP databases lead to creatives being shown to the wrong audience, and performance reports contain distorted data on CTR and conversion.

Geo verification checklist across 5 databases

What to do if geo does not match

If the verification shows a discrepancy, don’t rush to change providers — sometimes the problem can be solved more simply.

1. Request an IP rotation — most residential proxy providers have a pool of addresses, and the next IP from the same geo may show correct data across all databases.
2. Check the settings of the anti-detect browser — ensure that the timezone, language, and profile timezone are set manually and correspond to the geo of the proxy, rather than being automatically pulled from the real device.
3. Clarify the type of IP pool with the provider — if it is a datacenter proxy with legal registration of the block in another country, request a residential or mobile pool with more accurate geolocation.
4. Use monitoring services — for ongoing work with a large number of accounts, it’s worth setting up regular automated geo checks before each launch of a new campaign or profile.
5. Test on a small budget — before a large-scale ad launch in a specific country, run a test campaign with a minimal budget and check where the traffic is actually going according to the advertising platform's data.

Frequently Asked Questions

Why does the proxy provider guarantee one country while databases show another?
The provider focuses on the physical location of the server or SIM card, while GeoIP databases rely on the registration data of the IP block in RIPE/ARIN/APNIC. These data are not always synchronized.

How many databases are enough to check for confidence?
At least 3-5. If there is a match in 4 out of 5 databases, the risk of geo mismatch on the advertising platform or marketplace is minimal.

Which type of proxy shows the lowest percentage of discrepancies?
Based on usage experience, residential proxies show the most stable geo match across all five databases, as they are tied to real subscribers of home providers.

Is it necessary to check geo with every campaign launch?
Yes, especially if using a pool with IP rotation — each new address may have its own history and accuracy of country association.

Conclusion

The discrepancy between the declared country of the proxy and the data seen by the advertising platform or marketplace is a common but solvable problem. Regular verification across five databases (MaxMind, IP2Location, IPinfo, DB-IP, Ipregistry) before launching a campaign takes 5-10 minutes but saves budget and protects accounts from bans due to geo triggers.

If you regularly work with geo-specific tasks — targeting Facebook Ads in a specific country, managing Instagram accounts for clients from different regions, or monitoring prices on Wildberries from a target city — we recommend using residential proxies: they demonstrate the lowest percentage of discrepancies when verified against all major GeoIP databases. For tasks with high sensitivity to bans, such as Facebook Ads account farming, it’s also worth considering mobile proxies — they are less likely to come under suspicion from anti-fraud systems when geo is properly verified.