From Public Domain Traffic Attraction to Private Domain Retention: How to Precisely Build a User Funnel on Social Platforms Through Account Screening

In the social marketing matrix composed of Facebook, TikTok, and WhatsApp, the contradiction between the intensifying competition for public domain traffic and the inefficient conversion of private domain traffic has become increasingly prominent, trapping most brands in the dilemma of "high traffic acquisition costs and poor retention effects". As a key link connecting the public and private domains, social platform account screening can eliminate invalid traffic from a large number of public domain accounts and lock in high-intent users. By deeply integrating social platform account screening into the entire process of user funnel construction, it can further realize a closed loop of "precise public domain traffic attraction - efficient private domain retention - enhanced user lifetime value". Data shows that for brands that do not implement social platform account screening, the conversion rate from public domain to private domain is less than 3%, while the conversion rate of the optimized link through social platform account screening can increase to 18%. This gap directly determines the input-output ratio of social marketing.

I. Bottleneck in Social Marketing: "Leaks" in the User Funnel Caused by Lack of Account Screening

When brands build user funnels on social platforms, they often face the problem of "massive inflow of public domain traffic but poor retention". The core cause lies in ignoring the basic value of social platform account screening. From the collection of extensive traffic in the public domain attraction stage to user segmentation in private domain operations, invalid accounts are like "leaks in the funnel", leading to continuous loss of marketing resources. This is specifically reflected in three aspects:

The root cause of these problems is that brands equate social platform account screening with simple "account filtering" and fail to transform it into a strategic tool that runs through the entire process of the user funnel. Without precise social platform account screening, the user funnel is like a "sieve", making it difficult to retain truly high-value users.

Inflated Public Domain Traffic Acquisition Costs: A beauty brand launched an information flow advertisement on TikTok with a budget of 200,000 yuan without conducting social platform account screening. Among the attracted followers, 65% were zombie accounts or marketing accounts, and only 120 users were successfully retained in the WhatsApp private domain. The cost per acquisition soared to 1,667 yuan per person.
Dispersed Private Domain Operation Efforts: Customer service teams spend 40% of their time dealing with invalid inquiries from low-intent accounts when following up on private domain accounts, which occupies service resources for high-value users and violates the core logic of "precision focus" in social platform account screening.
Disordered User Funnel Layers: Due to the lack of segmentation standards based on social platform account screening, the extensive traffic from the public domain directly floods into the private domain, resulting in vague user portraits in the middle layer of the funnel. Brands cannot push targeted conversion content, and eventually 80% of private domain users become inactive.

II. Core Logic: Social Platform Account Screening Reconstructs the Entire User Funnel Link

Social platform account screening is not a single-link action, but a precision tool covering the entire link of "public domain traffic attraction - private domain retention - repurchase conversion". Its core value lies in screening high-quality accounts for each layer of the user funnel through "status verification + label segmentation + dynamic update", realizing the funnel's goal of "narrow entry and wide retention". This is specifically reflected in three stages:

1. Public Domain Traffic Attraction Stage: Screen High-Intent Accounts to Consolidate the Funnel Entrance

The core of public domain traffic attraction is "precise customer acquisition". Through setting multi-dimensional standards, social platform account screening ensures that high-potential accounts enter the funnel from the source.

Screening Standards: On public domain platforms such as Facebook and TikTok, lock in active accounts that "have interacted with similar brand content in the past 30 days + post at least 5 updates per week + have complete personal information".
Data Value: The initial conversion rate of such accounts, which have undergone social platform account screening, is 6 times that of extensive traffic after entering the private domain.
Practical Case: A 3C brand targeting the European and American markets locked in TikTok accounts that "follow tech review KOLs + liked mobile accessory content" through social platform account screening. The conversion rate of diverting these users to the WhatsApp private domain reached 22%.

2. Private Domain Retention Stage: Segment and Screen Accounts to Optimize the Middle Layer of the Funnel

The key to private domain retention is "precise segmentation". Social platform account screening can realize classified operation of accounts by combining labels such as user interaction behavior and consumption intent.

High-Intent Conversion Users: Push limited-time discounts to directly meet core needs and promote conversion.
Potential Nurturing Users: Share product insights to build trust and brand awareness.
Low-Intent Inactive Users: Trigger activation campaigns to boost account activity.
Data Support: The repurchase rate of private domain users segmented through social platform account screening is 110% higher than that of unsegmented groups.

3. Repurchase Conversion Stage: Dynamically Screen Accounts to Activate the Bottom Layer of the Funnel

The core of repurchase conversion is "value mining". Through dynamically tracking user behavior, social platform account screening can accurately identify and activate high-value accounts.

Characteristics of High-Value Accounts: Recently browsed new products + have a repurchase record in history, with strong potential for repeated consumption.
Operation Actions: Push targeted exclusive benefits to strengthen users' repurchase willingness.
Practical Case: A clothing brand locked in private domain accounts that "have a purchase record within 3 months + favorited current season new products" through social platform account screening. After pushing customized coupons, the repurchase rate increased to 35%.

III. Tool Empowerment: ITG Global Screening Builds a "Precision Sieve" for User Funnels

The value realization of social platform account screening is inseparable from the technical support of professional tools. As a number screening tool specially built for social marketing, ITG Global Screening has become a core tool for precisely building user funnels with its three major advantages of "multi-dimensional screening, full-link connection, and dynamic update". Its functional highlights are concentrated in the following aspects:

1. Multi-Dimensional Label System for Accurate Account Value Judgment

Breaking the limitation of traditional screening that only focuses on account status, ITG Global Screening builds a three-dimensional system of "basic attributes + behavior labels + intent labels" and supports more than 150 dimensional screening standards.

Basic Attributes: Cover region, age, and language to achieve precise geographical positioning.
Behavior Labels: Include interaction frequency and content preferences to lock in active and highly matched accounts.
Intent Labels: Link purchase history and consultation records to tap high-conversion potential users.
Practical Case: A maternal and infant brand targeting the Southeast Asian market set a label combination of "Indonesia + 25-35 years old + follow maternal and infant KOLs + searched for milk powder in the past month" through ITG Global Screening. The conversion intent of the screened accounts increased by 70% after entering the private domain.

2. Full-Platform Data Connection to Unblock the Public-Private Domain Screening Link

ITG Global Screening supports data connection with 12 major mainstream social platforms such as Facebook, TikTok, and WhatsApp, realizing the connection of public and private domain screening links.

From Public Domain to Private Domain: High-intent accounts screened in the public domain stage can be directly synchronized to the WhatsApp private domain background, shortening the conversion link.
Private Domain Feeds Back to Public Domain: The account interaction data in private domain operations reversely optimizes the label weight of ITG Global Screening, forming a closed loop of "screening - operation - re-screening".
Efficiency Improvement: A cross-border e-commerce company shortened the conversion cycle from public domain to private domain from 7 days to 2 days through this connection mode.

3. Dynamic Real-Time Update to Ensure Stable User Quality in the Funnel

ITG Global Screening ensures the stable quality of accounts at each layer of the user funnel through a dynamic update mechanism.

Real-Time Data Update: Update account data every 24 hours, and real-time eliminate newly added zombie accounts in the public domain and inactive low-activity accounts in the private domain.
Intelligent Model Optimization: The built-in AI algorithm dynamically optimizes the screening model according to platform policy changes (such as adjustments to TikTok interaction rules) to avoid misjudgment of account status.
Core Advantage: Solve the problems of low efficiency and easy lag in traditional manual screening, ensuring the continuous and efficient operation of the funnel.

IV. Practical Plan: Four-Step Method for Building User Funnels Through Social Platform Account Screening

In 2024, a cross-border home furnishing brand from Shenzhen built a precise user funnel in the Facebook and WhatsApp ecosystem through ITG Global Screening, reducing public domain traffic acquisition costs by 45% and increasing private domain repurchase rate to 22%. Its core operations can be summarized as a four-step method:

1. Clarify Funnel Layers and Customize Screening Standards

For the four layers of the user funnel - "public domain traffic attraction, private domain undertaking, conversion and repurchase, and fission communication" - customized differentiated standards were formulated through ITG Global Screening:

Public Domain Traffic Attraction Layer: Screen accounts that "interacted with the Facebook page at least 3 times + browsed the home furnishing category".
Private Domain Undertaking Layer: Screen accounts that "replied within 24 hours after being added on WhatsApp".
Conversion and Repurchase Layer: Screen accounts that "have a historical purchase amount of ≥500 yuan + browsed new products in the past 30 days".
Fission Communication Layer: Screen accounts that "shared brand content + have at least 200 friends".

2. Precisely Attract Public Domain Traffic to Consolidate the Funnel Entrance

When launching targeted advertisements on Facebook, the drainage effect was optimized with ITG Global Screening as the core:

Precise Reach: Synchronize the high-intent account labels from ITG Global Screening to the advertising background to ensure that advertisements only reach accounts that meet the standards.
Eliminate Invalid Accounts: Eliminate marketing accounts and high-risk accounts from the advertising audience through ITG Global Screening.
Effect Performance: Among the finally attracted public domain traffic, the proportion of high-intent accounts increased from 28% to 72%.

3. Conduct Layered Private Domain Operations to Accelerate Funnel Retention

The private domain accounts screened by ITG Global Screening were operated in categories to accelerate funnel retention:

High-Intent Conversion Users: Push "limited-time discounts + exclusive customer service" with a conversion rate of 25%.
Potential Nurturing Users: Push "home matching guides + new product previews" with an activation rate of 40%.
Low-Intent Inactive Users: Trigger "exclusive coupons for old customers + interactive gifts" activities, with an activation rate increased to 18%.

4. Conduct Data Review and Optimization to Iterate the Screening Model

Every week, the screening model was iteratively optimized by combining the data from ITG Global Screening and the funnel conversion data:

Strengthen High-Value Labels: It was found that accounts that "follow Nordic-style home furnishing KOLs" had the highest conversion rate, so the weight of this label was increased by 30%.
Set Standards for Eliminating Invalid Accounts: It was identified that accounts with "no interaction within 7 days after being added" had a repurchase rate close to 0, so they were included in the scope of private domain screening elimination.
Core Goal: Continuously "streamline and improve quality" of the user funnel to enhance the overall conversion efficiency.

V. Conclusion: Social Platform Account Screening Starts a New Paradigm of Precision Marketing

From public domain traffic attraction to private domain retention, the core competitiveness of social marketing has shifted from "traffic acquisition capability" to "traffic precision screening capability". As the cornerstone of building an efficient user funnel, social platform account screening can not only help brands plug traffic leaks and reduce marketing costs, but also convert every investment into retainable private domain assets. With its three major advantages of multi-dimensional labels, full-link connection, and dynamic update, ITG Global Screening fully realizes the value of social platform account screening and becomes a core tool for brands to achieve "precise traffic attraction - efficient retention - sustained growth" in the social ecosystem. In the future, with the in-depth integration of AI technology and social platform account screening, the construction of user funnels will become more intelligent. Only by incorporating social platform account screening into their core marketing strategies can brands break through the bottleneck in the era of traffic competition and achieve sustainable growth in social marketing.

ITG Global ScreeningIt is a world-leading number screening platform that combinesGlobal mobile phone number segment selection, number generation, deduplication, comparison and other functions. It supports global customersBulk numbers from 236 countriesFiltering and testing services, currently supportedMore than 40 social and apps, such as:

whatsapp/line, twitter, facebook, Instagram, LinkedIn, Viber, zalo, Binance, signal, skype, DISCORD, Amazon, Microsoft, Truemoney, Snapchat, kakao, Wish, GoogleVoice, Botim, MoMo, TikTok, GCash, Fantuan, Airbnb, Cash, VKontakte, Band, Mint, Paytm, VNPay, Moj, DHL, Okx, MasterCard, ICICBank, Bybwait.

The platform has several features, includingOpen filtering, active filtering, interactive filtering, gender filtering, avatar filtering, age filtering, online filtering, accurate filtering, duration filtering, power-on filtering, empty number filtering, mobile device filteringwait.

Platform providesSelf-sieve mode, sieve mode, fine-sieve mode and custom mode, to meet the needs of different users.

Its advantage lies in the integration of major social and applications around the world, providing one-stop, real-time and efficient number screening services to help you achieve global digital development.

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