What is Linespider?
Direct Answer: Linespider is a web crawler operated by LINE Corporation, providing search results for LINE services.
Linespider is a web crawler that provides a wide range of search results for LINE services while complying with the Robots Exclusion Protocol. It is operated by LINE Corporation.
User-Agent Identification
The following user-agent strings identify Linespider in your live traffic data:
Linespider
robots.txt Rules for Linespider
Respects robots.txt: Yes
Use the following robots.txt rules to control Linespider access:
# Block Linespider
User-agent: Linespider
Disallow: /
# Allow Linespider
User-agent: Linespider
Allow: /Robots.txt is a directive, not a barrier
LINE Corporation states that Linespider respects robots.txt. However, configuration mistakes, caching delays, and edge cases mean your directives may not always be followed as expected. Live traffic verification confirms whether Linespider actually obeys your rules in practice.
Need continuous verification across 500+ bots? Can AI See It automates this.
Crawl Behavior
Frequency:Not Documented
Request Pattern:Not Documented
Official Documentation Quotes
"Linespider is a Web crawler that provides a wide range of search results for LINE services while complying with the Robots Exclusion Protocol."
Crawl Activity Index
Relative crawl activity for Linespider over the past 28 days. Higher values indicate increased crawling intensity compared to the period baseline.
View recent activity data (last 7 days)
| Date | Activity Index |
|---|---|
| Mar 26, 2026 | 0.0 |
| Mar 27, 2026 | 0.0 |
| Mar 28, 2026 | 0.0 |
| Mar 29, 2026 | 0.0 |
| Mar 30, 2026 | 0.0 |
| Mar 31, 2026 | 0.0 |
| Apr 1, 2026 | 0.0 |
Source: Cloudflare Radar
Why track Linespider traffic?
Measure what LINE Corporation gives back. Linespider crawls thousands of your pages — but how much traffic does LINE Corporation actually send in return? Track referral visits from LINE Corporation's search products relative to crawl volume.
Monitor crawl budget and indexation health. Linespider determines which of your pages appear in LINE Corporation's search results. Tracking its crawl patterns reveals how often your key pages are visited, what gets ignored, and where crawl budget is wasted.
Detect crawl anomalies early. A sudden drop in Linespider activity can signal indexation problems — before they show up as organic traffic losses.
Catch 4XX and 5XX errors before they hurt rankings. If Linespider hits broken pages or server errors during crawling, those URLs may be dropped from the index. Early detection in your logs lets you fix the issue before it impacts your organic visibility.
Validate that your robots.txt rules are enforced. Configuring robots.txt is one thing — confirming that Linespider actually respects your directives is another. Live traffic validation is the only way to verify.
Why live traffic verification instead of Search Console? Search Console shows what LINE Corporation tells you. Live traffic verification shows what actually happened — including AI-related crawling that Search Console doesn't report.
Read: Live traffic verification vs Search Console for crawl monitoring →Log Verification
To verify Linespider traffic in your live traffic data:
- Search access logs for the user-agent strings listed above
- Check if the IP addresses match documented ranges (if provided by LINE Corporation)
- Verify the crawl pattern matches documented behavior
- Use reverse DNS lookup for additional verification if available
Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.
Undocumented Information
The following information is not officially documented for Linespider:
- crawl frequency
- IP verification
- JavaScript rendering
Monitor Linespider alongside 500+ other bots
Track crawl health, detect anomalies, and measure how AI features are changing your referral traffic — all from your live traffic data.
- Crawl frequency, coverage, and error monitoring for Linespider
- Compare traditional organic referrals vs AI-generated referrals
- Detect fake Linespider traffic (user-agent spoofing)
Measure business impact from Linespider
Crawl activity directly impacts organic visibility. The question is: is Linespider crawling the right pages at the right frequency?
- Crawl coverage: which paths and page types Linespider is actually crawling
- Crawl freshness: how recently Linespider visited key URLs
- Health: response code distribution (2xx, 3xx, 4xx, 5xx) with alerts when failed crawls spike
- Referral tracking: Linespider takes — measure what LINE Corporation gives back. Track actual visits arriving from LINE Corporation's products to your site.
Based on your live traffic data and analytics — not synthetic prompt tests.
Official Documentation
View Official Linespider Documentation →
Information sourced from official documentation. Content generated with AI assistance.