<b>Geo Pulse #18 — Theme: your GEO targeting is lying to you by a few percent</b>
This issue: IP geolocation isn't ground truth. The error rate quietly distorts every Tier-2 report.
— → <b>City-level accuracy is weak</b>: IP databases nail the country but often miss city/region — don't bid on "city" granularity in many GEOs. Credit: MaxMind GeoIP accuracy disclosures.
— → <b>Mobile carrier NAT</b>: carriers route many users through gateways in one city/country, mislabeling real locations. Source: networking/CGNAT writeups.
— → <b>VPN/proxy leakage</b>: a chunk of "Tier-1" traffic is Tier-3 users behind VPNs — inflating CPM bids on fake premium. Credit: traffic-quality vendors.
— → <b>Database refresh lag</b>: IP allocations change; stale databases misroute whole blocks. Update your GeoIP source. Source: provider changelogs.
— → <b>Why it matters</b>: a 2-5% misclassification on a tight-margin Tier-2 campaign can flip ROI sign without you seeing the cause.
Rule: treat GEO data as probabilistic. Reconcile platform GEO against payment-country and currency to catch the drift.
Geo Pulse
@thegeopulse
<b>Geo Pulse #18 — Theme: your GEO targeting is lying to you by a few percent</b>
Этот пост опубликован в Telegram-канале Geo Pulse. Подписаться можно по ссылке: @thegeopulse.