Detect Bots, Not Just Invalid Clicks
Bots are sophisticated. Basic automation detection catches obvious scripts. Click Guardian detects headless browsers, residential proxy bots, and AI-powered agents that mimic human behaviour. Block the fraud Google misses.
Bot Types Targeting Your Ads
Bot sophistication is increasing rapidly. Here are the six categories of bot traffic we detect and block, from basic scripts to AI-powered agents.
Basic Bots
Simple scripts running from a single IP with the same user agent. Easy to catch with basic detection, but still responsible for a large volume of invalid clicks.
Sophisticated Bots
Randomised IPs, user agent rotation, and time delays between clicks. These bots evade basic IP-based detection and appear as multiple different users.
Headless Browsers
Automated Chrome or Firefox running without a display. Executes JavaScript, interacts with forms, and passes basic bot checks. Increasingly common in ad fraud.
Residential Proxy Bots
Operate through legitimate residential IP addresses, making them appear as real users. Virtually undetectable by IP-based systems. The hardest bot category to catch.
Automation Frameworks
Selenium, Puppeteer, Playwright, and Cypress-based bots. Professional-grade automation tools repurposed for click fraud, with human-like interaction patterns.
AI-Powered Bots
LLM-based agents that simulate natural browsing behaviour, type realistically, and make decisions like humans. The newest and most dangerous category of ad fraud.
We Know Your Device Better Than You Do
Click Guardian collects over 100 device signals per visit, building a fingerprint that reveals whether a visitor is a real person or a bot.
Hardware Signals
- Device ID & type
- CPU architecture & cores
- GPU type & renderer
- Memory profile
Browser Signals
- User agent & version
- Installed plugins
- Rendering engine
- Permissions & features
Canvas & Rendering
- Canvas fingerprinting
- WebGL fingerprinting
- Audio context fingerprinting
- Font enumeration
Display & Environment
- Screen resolution & depth
- Time zone & locale
- OS & platform specifics
- Touch support & input
What Fingerprinting Reveals
Can Bots Really Fake Human Behaviour?
Humans are messy. Bots are perfect. That difference is our advantage. We analyse five categories of behaviour to separate real users from automated traffic.
Mouse Movement
Real Human
Natural curves, acceleration and deceleration, micro-corrections, hesitation, imprecise targeting of elements
Bot
Linear movement, constant speed, pixel-perfect targeting, no jitter, mathematically straight paths between elements
Keyboard & Typing
Real Human
Variable keystroke speed, typos and corrections, pauses to think, natural rhythm differences between words
Bot
Constant speed input, zero typos, clipboard paste patterns, uniform intervals between keystrokes
Form Interaction
Real Human
Re-reads fields, scrolls back up, tabs between fields naturally, changes answers, takes time reviewing
Bot
Single-action fill, sequential field completion, no re-reading, instant form submission without review
Scroll & Page Interaction
Real Human
Variable scroll speed, pauses at content, scrolls back up, engages with visible elements, natural reading patterns
Bot
Instant scroll to target, no reading pauses, uniform scroll velocity, skips directly to interactive elements
Click Velocity
Real Human
Variable speed between clicks, occasional double-clicks by accident, hover before clicking, imprecise click targeting
Bot
Consistent precision, uniform time intervals, no hover events, direct navigation to click targets without exploration
Humans are messy. Bots are perfect.
That difference is our advantage. Click Guardian's behavioural analysis turns imperfection into a powerful signal for detecting automated traffic.
We Know Your Automation Tools
Professional automation frameworks leave fingerprints. We detect every major tool used for click fraud, even when they try to hide.
Frameworks We Detect
Selenium
WebDriver property detection
Puppeteer
Browserless signatures
Playwright
Headless mode indicators
Cypress
Identifiable runtime signatures
Headless Chrome / Firefox
Browser-level headless detection
WebDriver Protocol / Custom Scripts
Protocol-level detection
How We Detect Them
WebDriver Detection
Checks for the navigator.webdriver property and related DOM artefacts that automation frameworks inject.
Headless Mode Indicators
Identifies missing browser features, non-standard window dimensions, and absent plugins that indicate headless execution.
Framework Fingerprints
Each framework leaves unique traces in the DOM, JavaScript globals, and browser behaviour that we pattern-match against.
Chrome DevTools Protocol
Detects active CDP connections that automation tools use to control the browser programmatically.
Plugin Absence & Timing Analysis
Automated browsers lack standard plugins and exhibit inhuman response timing. We measure both to confirm automation.
Even AI Bots Can't Hide
Most click fraud tools have zero AI bot detection. We're detecting threats that are just beginning to emerge, giving you protection before the rest of the industry catches up.
What AI Bots Try to Do
- Simulate natural typing patterns with variable speed and occasional mistakes
- Generate human-like mouse movements with curves and micro-corrections
- Complete forms with contextually appropriate information
- Make browsing decisions that mimic genuine user intent
How We Detect Them
- Linguistic pattern analysis — Detects LLM-generated micro-signatures in typing rhythms
- Intent consistency — Analyses whether browsing behaviour matches stated intent
- Response timing — AI bots show characteristic delay patterns between action and response
- Form completion logic — Detects unnaturally consistent accuracy across complex form fields
- Behavioural consistency anomalies — AI behaviour is too consistent across sessions
- Session intelligence — Cross-references behaviour across our network of 2,000+ customers
Frontier AI Bot Detection
Most click fraud tools have zero AI bot detection. Click Guardian is detecting threats that are just beginning to emerge, powered by our Verideon AI engine.
Stop Bots Before They Cost You
Detection is only valuable if it happens fast. Click Guardian analyses every click in milliseconds and blocks fraudulent sources from clicking again.
Bot Clicks Ad
A bot clicks your Google or Microsoft ad, triggering our detection system.
Instant Analysis
100+ signals analysed in milliseconds: fingerprint, behaviour, network, and session data.
Bot Blocked
Confirmed bot is blocked at the network edge. Never reaches your website or analytics.
Network Learns
Bot signature shared across our network. All 2,000+ customers are now protected from this threat.
<50ms
Average detection time from click to block
2,000+
Businesses contributing to network intelligence
24/7
Continuous protection, no downtime
We Catch Bots, Not Real Users
Aggressive bot detection means nothing if it blocks legitimate customers. Click Guardian uses conservative scoring and multi-signal confirmation to ensure real users always get through.
Conservative Scoring
We only block when confidence is high. A single suspicious signal is never enough. Multiple independent signals must confirm bot behaviour before any action is taken.
Multi-Signal Confirmation
Fingerprint, behaviour, network, and session signals must all agree before a visitor is classified as a bot. This layered approach prevents false positives from any single data point.
Behavioural Flexibility
Unusual humans exist. Users with disabilities, elderly users, or people on unfamiliar devices behave differently. Our system accounts for the full range of legitimate human variation.
VPN & Corporate Networks Welcome
VPN users and corporate network traffic are never blocked. We distinguish between "unusual human" and "bot" by analysing behaviour, not just network origin.
<0.5%
False positive rate
Our false positive rate is below 0.5%, meaning virtually all real customers reach your site without interference. Combined with our Google Ads protection, you get comprehensive coverage without sacrificing legitimate traffic.
Frequently asked questions
We detect basic bots, sophisticated bots, headless browsers (Chrome, Firefox, Chromium), residential proxy bots, automation frameworks (Selenium, Puppeteer, Playwright), and AI-powered bots. Essentially, any non-human traffic attempting to click your ads.
Absolutely. Basic systems catch simple scripts, but miss headless browsers and residential proxy bots. Sophisticated fraudsters use automation frameworks and now AI agents. Basic detection is outdated; advanced behavioural analysis is necessary.
We analyse typing patterns for LLM micro-signatures, monitor response timing anomalies, detect behavioural consistency issues, and use cross-session intelligence. AI bots are our frontier detection capability; most systems have zero AI bot detection yet.
A headless browser is Chromium or Firefox running without a visual display — used for automation. It can run JavaScript, interact with pages, and appears more human-like than basic bots. It's a problem because it bypasses simple detection and mimics human behaviour.
No. We distinguish between "unusual human" (VPN user, corporate network, non-standard device) and "bot." Legitimate users from unusual locations or devices are never blocked. Our false positive rate is below 0.5%.
Within seconds. We need to see the click first and run our detection rules before executing a block. Once a visitor is scored as a bot, blocking happens almost instantly on subsequent interactions.
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