{"id":342,"date":"2026-07-15T15:59:02","date_gmt":"2026-07-15T13:59:02","guid":{"rendered":"https:\/\/www.lukaswojcik.com\/blog\/?p=342"},"modified":"2026-07-15T15:59:03","modified_gmt":"2026-07-15T13:59:03","slug":"tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok","status":"publish","type":"post","link":"https:\/\/www.lukaswojcik.com\/blog\/en\/digital-marketing\/tutorials-en-digital-marketing\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\/","title":{"rendered":"Tutorial: IP Anonymization in Conversions API: Meta, LinkedIn, and TikTok"},"content":{"rendered":"

Adherence to global privacy standards necessitates the anonymization of IP addresses before transmission to advertising platforms. This document outlines the procedure for masking IP addresses within the Server-Side Google Tag Manager (ssGTM) environment for Meta, LinkedIn, and TikTok Conversions API integrations.<\/p>\n

Step 1: Implementing IP Masking Logic<\/h3>\n

The anonymization process involves stripping the last octet of the IPv4 address (or the equivalent segment of an IPv6 address). This is typically performed using a Custom Template in ssGTM. The transformation function replaces the last portion of the string with “0”.<\/p>\n

function maskIP(ip) {\n  return ip.replace(\/\\.\\d+$\/, '.0');\n}<\/code><\/pre>\n
Step 2: Applying Masking to Payload<\/h3>\n
Within the CAPI tag configuration, the client_ip_address<\/code> field is mapped to a variable containing the result of the masking function, rather than the raw HTTP request IP.<\/p>\n
Step 3: Platform Specifics<\/h3>\n
    \n
  • Meta (Facebook):<\/strong> The client_ip_address<\/code> parameter is masked before being sent within the event payload.<\/li>\n
  • LinkedIn:<\/strong> The user.ip<\/code> field is transformed.<\/li>\n
  • TikTok:<\/strong> The ip<\/code> field within the user<\/code> object is masked.<\/li>\n<\/ul>\n
    Payload Example<\/h3>\n
    Raw Payload (Before Masking):<\/strong><\/p>\n
    {\n  \"client_ip_address\": \"192.168.1.45\",\n  \"event_name\": \"Purchase\"\n}<\/code><\/pre>\n
    Masked Payload (After Masking):<\/strong><\/p>\n
    {\n  \"client_ip_address\": \"192.168.1.0\",\n  \"event_name\": \"Purchase\"\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
    Adherence to global privacy standards necessitates the anonymization of IP addresses before transmission to advertising platforms. This document outlines the procedure for masking IP addresses within the Server-Side Google Tag Manager (ssGTM) environment for Meta, LinkedIn, and TikTok Conversions API integrations. Step 1: Implementing IP Masking Logic The anonymization process involves stripping the last octet […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[127],"tags":[],"class_list":["post-342","post","type-post","status-publish","format-standard","hentry","category-tutorials-en-digital-marketing"],"yoast_head":"\nTutorial: IP Anonymization in Conversions API: Meta, LinkedIn, and TikTok - Lukas Wojcik - Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.lukaswojcik.com\/blog\/en\/digital-marketing\/tutorials-en-digital-marketing\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Tutorial: IP Anonymization in Conversions API: Meta, LinkedIn, and TikTok - Lukas Wojcik - Blog\" \/>\n<meta property=\"og:description\" content=\"Adherence to global privacy standards necessitates the anonymization of IP addresses before transmission to advertising platforms. This document outlines the procedure for masking IP addresses within the Server-Side Google Tag Manager (ssGTM) environment for Meta, LinkedIn, and TikTok Conversions API integrations. Step 1: Implementing IP Masking Logic The anonymization process involves stripping the last octet […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.lukaswojcik.com\/blog\/en\/digital-marketing\/tutorials-en-digital-marketing\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\/\" \/>\n<meta property=\"og:site_name\" content=\"Lukas Wojcik - Blog\" \/>\n<meta property=\"article:published_time\" content=\"2026-07-15T13:59:02+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-07-15T13:59:03+00:00\" \/>\n<meta name=\"author\" content=\"luky\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"luky\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/en\\\/digital-marketing\\\/tutorials-en-digital-marketing\\\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/en\\\/digital-marketing\\\/tutorials-en-digital-marketing\\\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\\\/\"},\"author\":{\"name\":\"luky\",\"@id\":\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/#\\\/schema\\\/person\\\/895f7604f9b6b71aad9bba33af28d0f9\"},\"headline\":\"Tutorial: IP Anonymization in Conversions API: Meta, LinkedIn, and TikTok\",\"datePublished\":\"2026-07-15T13:59:02+00:00\",\"dateModified\":\"2026-07-15T13:59:03+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/en\\\/digital-marketing\\\/tutorials-en-digital-marketing\\\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\\\/\"},\"wordCount\":167,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/#\\\/schema\\\/person\\\/895f7604f9b6b71aad9bba33af28d0f9\"},\"articleSection\":[\"Tutorials\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/en\\\/digital-marketing\\\/tutorials-en-digital-marketing\\\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/en\\\/digital-marketing\\\/tutorials-en-digital-marketing\\\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\\\/\",\"url\":\"https:\\\/\\\/www.lukaswojcik.com\\\/blog\\\/en\\\/digital-marketing\\\/tutorials-en-digital-marketing\\\/tutorial-ip-anonymization-in-conversions-api-meta-linkedin-and-tiktok\\\/\",\"name\":\"Tutorial: IP Anonymization in Conversions API: Meta, LinkedIn, and TikTok - 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