01 · Operator
Who operates Linespider
- Company
- LINE
- Official docs
- help2.line.me
02 · Behavior
What Linespider does
Linespider crawls public web pages for LINE's search features. LINE documents two user agents, a classic one and a Chrome-based one. It follows robots.txt rules addressed to Linespider.
03 · Impact
Why Linespider matters for your site
If you allow it
- Pages can appear in LINE search results
- Documented crawler that follows robots.txt
If you block it
- Little value if you have no audience in LINE markets
- Adds crawl load
04 · Allow
How to allow Linespider
robots.txt
User-agent: Linespider
Allow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "Linespider")
Action: Skip › All Super Bot Fight Mode rules
# Also check Security › Bots: "Block AI bots" can block it regardless of robots.txt.WordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: Linespider
Allow: /nginx
# nginx serves every user agent by default.
# Make sure no rule like this blocks it:
# if ($http_user_agent ~* "Linespider") { return 403; }Apache
# Apache serves every user agent by default.
# Make sure .htaccess has no rule like this:
# RewriteCond %{HTTP_USER_AGENT} Linespider [NC]
# RewriteRule .* - [F,L]05 · Block
How to block Linespider
Linespider follows robots.txt, so one rule is enough. Use a server or CDN rule only to stop spoofed copies.
robots.txt
User-agent: Linespider
Disallow: /Cloudflare
# Security › WAF › Custom rules › Create rule
Expression: (http.user_agent contains "Linespider")
Action: BlockWordPress
# WordPress serves a virtual robots.txt. Edit it with your SEO plugin:
# Yoast: SEO › Tools › File editor · Rank Math: General Settings › Edit robots.txt
User-agent: Linespider
Disallow: /nginx
# In your server { } block:
if ($http_user_agent ~* "Linespider") {
return 403;
}Apache
# .htaccess
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTP_USER_AGENT} Linespider [NC]
RewriteRule .* - [F,L]
</IfModule>06 · User agents
User agents we see for Linespider
The user agent published by the operator:
Mozilla/5.0 (compatible; Linespider/1.1; +https://lin.ee/4dwXkTH)07 · Verification
Is it really Linespider?
Linespider’s operator publishes no IP ranges or hostnames, so requests cannot be verified. Treat the user agent as a claim, and watch your logs for unusual request rates.
FAQ
Questions about Linespider
What is Linespider?
Linespider is a web crawler managed by LINE. It gathers pages to provide search results.
Does Linespider respect robots.txt?
Yes. LINE says rules under "User-agent: Linespider" in robots.txt apply to the crawler.
How do I block Linespider?
Add "User-agent: Linespider" followed by "Disallow: /" to your robots.txt file.
Last reviewed Oct 8, 2026