ClickDefender vs Spider AF

ClickDefender is a paid click-fraud protection service for PPC campaigns on Google Ads and Microsoft Ads. It uses a JavaScript tracking script, real-time detection, analytics, IP blocklists, API access, and alerts. The maker says its AI evaluates clicks across more than 50 signals, including browser fingerprints, scroll depth, time on page, click patterns, and other behavioral indicators, to identify bots, click farms, and competitor activity. Dashboards report traffic sources, IP addresses, geographic distribution, device types, and fraud trends. Google Ads can receive blocked-IP exclusions every six hours, up to 500 IPs per campaign. Microsoft Ads automation is listed as in development; users can export a blocklist for manual import. Slack alerts and HTTP webhooks send fraud events externally. Setup supports JavaScript or Google Tag Manager, with guidance for WordPress, Shopify, Wix, Squarespace, and custom HTML. Plans start at £49 a month, with a seven-day trial requiring a payment method and converting to a subscription unless canceled.

Spider AF is a web and API service covering ad fraud protection, fake lead protection, affiliate fraud protection, and SiteScan website security. Its ad-fraud tools detect invalid clicks and bot traffic and can block them automatically across channels including Google Ads, Meta, LinkedIn, TikTok, Microsoft Ads, Yahoo Ads, and programmatic advertising. The listed platforms also include Criteo, RTBHouse, Taboola, Logicad, X, LINE, Pinterest, and SmartNews. A site tag installed through Google Tag Manager or a code snippet can start an ad-fraud audit. Fake Lead Protection uses behavioral biometrics to block non-human submissions, with HubSpot and Salesforce integrations for flagging or server-side blocking. SiteScan monitors third-party tags for suspicious communications or tampering. Detection uses JavaScript device and session signals, lists, and a proprietary multiple-signal approach. Pricing starts at $120/mo (annual), with a 14-day trial and no free plan. Raw traffic events are retained 90 days and system logs 30 days.