How can I use invisible links to identify bot clicks in B2B emails?
Summary
What email marketers say8Marketer opinions
Email marketer from MarketingProfs emphasizes the importance of analyzing IP addresses associated with clicks to identify potential bot activity. Identifying patterns and anomalies in IP addresses can reveal non-human traffic sources, allowing for the removal of bot clicks from overall email engagement metrics.
Email marketer from ActiveCampaign advises monitoring click times and patterns to identify bot clicks. Unusually fast clicks or repetitive clicks from the same IP address can indicate bot activity, allowing for the filtering of these clicks from email analytics.
Email marketer from Quora suggests using JavaScript to add a hidden attribute to links that bots are likely to click. Human users, with JavaScript enabled, won't see the attribute, but bots will trigger it. This allows for the tracking and identification of bot-driven clicks.
Email marketer from Marketing Over Coffee Forum suggests using 'honeypot links' that are invisible to users but attractive to bots. Clicks on these links are a strong signal of bot activity, allowing for their immediate identification and exclusion from engagement metrics.
Email marketer from Reddit discusses implementing a honeypot field in email subscription forms. This hidden field, invisible to human users, is designed to attract bots. Submissions with this field filled indicate bot activity, allowing for their identification and filtering from legitimate subscribers.
Email marketer from Neil Patel Blog shares a strategy to identify bot traffic by comparing Google Analytics data with internal server logs. Discrepancies, where the server records a hit but Google Analytics doesn't, can indicate bot activity. Further analysis of IP addresses can help in blocking or filtering bot traffic.
Email marketer from Stack Overflow explains the honeypot technique which involves adding a field to a form that is hidden from human users but visible to bots. If the honeypot field is filled, it indicates a bot submission. This can be used to filter out bot clicks or form submissions.
Email marketer from Reddit suggests using CSS to hide links from human view while remaining accessible to bots. This approach involves creating a link with `display:none` or `visibility:hidden` in CSS, effectively creating a 'honeypot' for bot clicks. Analyzing clicks on these hidden links can help identify and filter bot traffic.
What the experts say6Expert opinions
Expert from Email Geeks suggests that instead of using an invisible 1x1 pixel, a better approach to identify bot clicks is to put the link around an empty string or a string hidden by CSS and track the clicks on that. This method offers the same benefit and is simpler to implement.
Expert from Word to the Wise mentions the utility of hidden links within emails to identify bot activity. These links, invisible to human recipients, attract bot clicks, thereby enabling you to segment and filter out bot-driven interactions from legitimate engagement data.
Expert from Email Geeks advises against using an invisible pixel for bot detection and clarifies the preferred method is a regular text link made invisible to humans using CSS. He elaborates that a link with plausible text content, made invisible via CSS, is probably ideal.
Expert from Email Geeks explains that bots generally do not process CSS and therefore cannot determine if an element is visible or not. He also mentions that while it is possible to create bots that interpret CSS, it is not a common practice.
Expert from Spam Resource details using unique tracking parameters added to URLs within emails. These parameters, when clicked, help identify the source, and unusual patterns can indicate bot activity. This is mentioned in the context of list bombing mitigation.
Expert from Spam Resource describes how to fingerprint browsers, in order to differentiate between humans and bots. This helps detect bot behaviour by tracking browser characteristics and comparing them with known bot signatures.
What the documentation says4Technical articles
Documentation from OWASP (Open Web Application Security Project) outlines common automated threats including bot traffic. It details strategies for identifying and mitigating malicious bot activity, emphasizing techniques like CAPTCHAs, rate limiting, and behavioral analysis to protect web applications.
Documentation from Google Analytics Help explains how to exclude bot and spider traffic in Google Analytics. It involves using the 'Exclude all hits from known bots and spiders' setting within the view settings. This automatically filters out traffic identified by the IAB Bot List.
Documentation from Cloudflare details their bot management features, including bot detection based on behavioral analysis and machine learning. It offers insights into identifying and mitigating bot traffic, which can include click bots affecting B2B email analytics.
Documentation from Imperva explains advanced bot detection methods, including behavioral analysis and device fingerprinting. It highlights how these methods can differentiate between human and bot traffic with high accuracy, improving the quality of email marketing analytics by filtering out bot-generated interactions.