ITG GLOBAL SCREENING

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By Admin March 17, 2026

How to quickly determine if a Line account is active? Look for these signals: "Homepage" and "Last Online".

In cross-border marketing, Line is a core platform for reaching customers in East and Southeast Asia. Account activity directly determines marketing conversion rates, and Line account screening is a key method for accurately identifying active accounts and avoiding inactive accounts. The core value of Line account screening lies in proactively screening out invalid accounts, focusing on high-quality customer groups, and avoiding wasted marketing resources. Accurately judging Line account activity is the crucial step in Line account screening; conversely, neglecting this pre-screening phase can lead to wasted effort on inactive accounts, resulting in low marketing efficiency and high costs. Therefore, mastering methods for judging Line account activity and effectively performing Line account screening is an essential skill for precise customer acquisition in cross-border marketing.

I. Why is it necessary to determine whether a Line account is active?

In cross-border scenarios such as Line community operations, friend outreach, and advertising, active accounts are the core vehicle for marketing conversion. The core purpose of Line's account screening is to eliminate inactive accounts and improve resource utilization. Pushing information to inactive accounts, even with high-quality content, will not generate feedback and is a pure waste of resources, which contradicts the core purpose of Line's account screening.
Common inactive Line accounts include:
  • The account has never been logged in or used since registration, making it a completely inactive account with no value to reach users.
  • The site has been offline for a long time, with the last login time being more than 3 months ago, indicating extremely low user activity.
  • The account has been deleted or banned, leaving only account traces, and cannot receive any messages.
  • The account is registered by machine, and the homepage has no content or interaction; it is only used as a placeholder.
If these inactive accounts are not identified in advance through Line's screening process, they will consume more than 30% of the marketing budget, interfere with data statistics, lead to decision-making biases, and affect the effectiveness of cross-border deployments, rendering the pre-emptive protection function of Line's screening process ineffective.

II. What activity signals can be captured from the "homepage"?

The Line account homepage is a concentrated reflection of user behavior and a core scenario for Line to screen accounts to determine activity levels. By looking at the details of the homepage, you can quickly screen the account status. The operation is simple and does not require complicated tools, making it suitable for lightweight Line account screening needs.
  • Signal 1: Completeness of Personal Information. Active accounts usually have complete profile pictures, nicknames, and signatures, and some will fill in their region and interest tags; inactive accounts mostly have default profile pictures and blank nicknames, without any personalized information, making them extremely difficult to identify.
  • Signal 2: Frequency of content updates. Check the account's Moments and activity feed. If there have been updates in the past 1-3 months, such as sharing of life experiences or comments, it indicates that the account is active. If there are no updates for a long time, it is likely a dormant account.
  • Signal 3: Friend interaction traces. If other people like or comment on the homepage posts and the account replies, it can be directly identified as a highly active account; accounts with no interaction traces need further verification of their activity level.

III. What are the "last online" and other auxiliary judgment signals?

The "last online" time is the core basis for Line's screening to judge activity level. Combined with other auxiliary signals, it can improve the accuracy of Line's screening, avoid misjudging activity status, and make the screening results more in line with marketing needs.
  • Key signal: Last online time. The Line friend list will display the other party's last online time, categorized as "Online", "Just Now", "Within 1 Hour", "Within 1 Day", "Within 1 Week", etc. Accounts with online records within 1 week are considered active, while those with online records within 1 month are considered inactive. This can be used to filter accounts based on marketing needs.
  • Auxiliary signal 1: Community interaction behavior. If an account joins multiple Line communities and engages in activities such as speaking, voting, and sharing, it indicates high account activity; accounts that remain inactive for extended periods have lower conversion value.
  • Second auxiliary signal: message response speed. Accounts that reply within 24 hours of sending a test message are considered highly active; accounts that do not reply within 72 hours and were last online relatively early can be identified as inactive and do not require focused targeting.

IV. How to improve efficiency and accuracy when making batch judgments?

In batch scenarios, Line screening needs to balance efficiency and accuracy. By combining "tools + manual" methods, it can meet the screening needs of large-scale cross-border marketing and maximize the value of Line screening.
  • Leverage professional tools for batch screening. ITG's full-domain screening can be used to screen millions of Line accounts. It can connect to Line's compliant data interface to batch capture information such as the last online time, homepage activity, and interaction history of accounts, and automatically mark the activity level with an accuracy rate of over 95%, which greatly improves the efficiency of Line screening and saves labor costs.
  • Human review optimizes Line's screening results. Highly active accounts marked by the tool are sampled and reviewed to confirm the authenticity of their homepage information and interactions, preventing bot accounts from being mixed in; accounts with ambiguous status are verified separately to fill blind spots in the tool's screening and improve the accuracy of Line's screening.
  • Establish an activity tier system. Based on the screening results, categorize accounts into three levels: high, medium, and low activity. Prioritize high-activity accounts for core resource allocation, while temporarily refrain from allocating resources to low-activity accounts. Regularly review and update the status to optimize resource allocation.

V. Conclusion

Quickly assessing Line account activity hinges on identifying key signals like "Homepage" and "Last Online," crucial steps in Line account screening. In batch scenarios, combining this with ITG's comprehensive filtering enhances Line screening efficiency. Further manual review and optimization removes inactive accounts at the source, allowing marketing resources to focus on high-quality customers. In today's fiercely competitive cross-border marketing landscape, mastering this Line account screening method effectively reduces ineffective spending, improves Line platform marketing conversion rates, and achieves the dual goals of precise customer acquisition and cost reduction.

ITG Global Screening is a leading global number screening platform that combines global number range selection, number generation, deduplication, and comparison. It offers bulk number screening and detection for 236 countries and supports 20+ social and app platforms such as WhatsApp, Line, Zalo, Facebook, Telegram, Instagram, Signal, Amazon, Microsoft and more. The platform provides activation screening, activity screening, engagement screening, gender/avatar/age/online/precision/duration/power-on/empty-number and device screening, with self-screening, proxy-screening, fine-screening, and custom modes to suit different needs. Its strength is integrating major global social and app platforms for one-stop, real-time, efficient number screening to support your global digital growth. Get more on the official channel t.me/itgink and verify business contacts on the official site. Official business contact: Telegram: @cheeseye (Tip: when searching for official support on Telegram, use the username cheeseye to confirm you are talking to ITG official.)