Safe AI & LLM Bots

LINER Bot

Operated by LINER

Quick Facts

User-Agent:
LINER Bot
Category:
AI & LLM Bots
Operator:
LINER
Safety:
Safe
Blocking Impact:
Low - No SEO ranking impact
SEO Impact Score:
2/10
Official docs:
docs.getliner.com

What is LINER Bot?

The web crawler for LINER, an AI workspace and highlighter tool used to index content for user recommendations.

The web crawler for LINER, an AI workspace and highlighter tool used to index content for user recommendations. LINER Bot is an AI data-collection crawler operated by LINER. It harvests web content to build or expand training datasets for large language models (LLMs). Unlike search crawlers, LINER Bot does NOT influence your page ranking in any search engine. The user-agent string LINER Bot can be safely blocked via robots.txt, meta tags (noai), or the emerging llms.txt standard without any SEO penalty. Robots.txt is voluntary; for hard enforcement, combine it with server-level IP blocking.

What happens if you block LINER Bot?

✅ **No SEO Impact** - Blocking LINER Bot does not affect your rankings in Google, Bing, or any other search engine. LINER Bot is an AI training crawler, not a search indexer. You can freely block it via User-agent: LINER Bot / Disallow: / without any SEO penalty. This is the recommended approach if you want to opt out of LINER's LLM training datasets.
Generally safe to allow; provides legitimate crawling value.

How to block LINER Bot with robots.txt

<code>User-agent: LINER Bot</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.

Block completely (robots.txt)
User-agent: LINER Bot Disallow: /
Allow all (robots.txt)
User-agent: LINER Bot Allow: /
Block private only (robots.txt)
User-agent: LINER Bot Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block LINER Bot if ($http_user_agent ~* "LINER\ Bot") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block LINER Bot SetEnvIfNoCase User-Agent "LINER\ Bot" bad_bot Order Allow,Deny Allow from all Deny from env=bad_bot
Meta robots tag
<meta name="robots" content="noindex, nofollow">
X-Robots-Tag header
X-Robots-Tag: noindex, nofollow

Is LINER Bot safe to allow?

Yes, LINER Bot is a **safe and legitimate** crawler. It is operated by LINER, which publicly documents its crawler at an official URL and follows the Robots Exclusion Protocol (RFC 9309). The user-agent string LINER Bot is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).
Verify by reverse-DNS lookup: legitimate LINER Bot requests resolve to liner's domain.

What does LINER Bot do?

Understanding LINER Bot's purpose helps you decide whether to allow or block it.

  • Collects web content for AI model training
  • Gathers data to improve language understanding
  • Scrapes text, code, and other content for datasets
  • May be used for chatbot and AI assistant development
  • Typically does NOT affect search engine rankings

Frequently Asked Questions

What is the official user-agent string for LINER Bot?
The official user-agent string for LINER Bot is: LINER Bot. This is the exact string you must use in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. User-agent matching in robots.txt is case-insensitive, but the string must be spelled correctly. You can verify that a request genuinely comes from LINER Bot by performing a reverse-DNS lookup on the source IP - legitimate bots resolve back to their operator's domain.
Is LINER Bot safe?
Yes, LINER Bot is a **safe and legitimate** crawler. It is operated by LINER, which publicly documents its crawler at an official URL and follows the Robots Exclusion Protocol (RFC 9309). The user-agent string LINER Bot is verifiable via reverse-DNS lookup on the crawling IP addresses. You can safely allow it unless you have a specific reason to block (e.g., AI training opt-out or SEO tool visibility).
Will blocking LINER Bot hurt my SEO?
✅ **No SEO Impact** - Blocking LINER Bot does not affect your rankings in Google, Bing, or any other search engine. LINER Bot is an AI training crawler, not a search indexer. You can freely block it via User-agent: LINER Bot / Disallow: / without any SEO penalty. This is the recommended approach if you want to opt out of LINER's LLM training datasets.
How do I block LINER Bot in robots.txt?
Add the following lines to your /robots.txt file: 
User-agent: LINER Bot
Disallow: /
This instructs LINER Bot not to crawl any path on your site. The Disallow: / directive covers the entire domain including subfolders. To only block specific sections, replace / with the path (e.g., Disallow: /blog/). Note: robots.txt is publicly readable - any bot or human can inspect it at yourdomain.com/robots.txt.
Does LINER Bot respect robots.txt?
Yes - LINER Bot is a well-behaved bot operated by LINER. It fetches and parses /robots.txt before crawling any page, following RFC 9309.
How do I verify if LINER Bot is crawling my site?
Search your web server access logs for the string LINER Bot (case-insensitive grep: grep -i "LINER Bot" /var/log/nginx/access.log). You can also check Google Search Console → Coverage → Crawl Stats for Googlebot variants. For LINER Bot specifically, filter by user-agent in your log analysis tool (GoAccess, AWStats, etc.).
What is the crawl frequency of LINER Bot?
LINER Bot crawls at a moderate rate. If you notice excessive traffic in your logs, you can add a Crawl-delay directive: 
User-agent: LINER Bot
Crawl-delay: 10
(10 second delay between requests).
Can I block LINER Bot from specific pages only?
Yes. Instead of a global Disallow: / you can restrict LINER Bot to specific paths: 
User-agent: LINER Bot
Disallow: /private/
Disallow: /staging/
Allow: /
This allows LINER Bot everywhere except the listed paths. Path matching in robots.txt uses prefix matching - Disallow: /private/ blocks /private/page.html but NOT /public/private/.
Does blocking LINER Bot prevent AI training on my content?
Blocking LINER Bot via robots.txt signals to LINER that your content should not be used for AI training. However, robots.txt is a **voluntary** protocol - there is no technical enforcement. For stronger protection: 1. Add <meta name="LINER Bot" content="noai, noimageai, noindex"> to your pages. 2. Add a llms.txt file at your domain root (emerging standard). 3. Use Cloudflare WAF or Nginx to return 403 for this user-agent. 4. Consider IP blocklists for LINER's known crawler IP ranges.
Is there an alternative to robots.txt to opt out of LINER Bot?
Yes. Several additional opt-out mechanisms exist for AI crawlers: • **Meta tag**: <meta name="LINER Bot" content="noindex"> • **X-Robots-Tag HTTP header**: X-Robots-Tag: noai, noimageai • **llms.txt**: Add a /llms.txt file (similar to robots.txt but for LLMs) • **Server block**: Return 403 or 429 for this user-agent via WAF or Nginx Using multiple layers provides the strongest protection.

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