Overview
Blueno is operated by NAVER and is used for Fetching page metadata and summary information for NAVER link previews.
Its documented identity is hit/1.1 (compatible; Blueno/1.0; +http://naver.me/scrap). The robots.txt token is Blueno.
Current first-party documentation does not establish a dependable robots.txt behavior.
Match Blueno and verify the request with NAVER's documented forward-confirmed reverse DNS or current network list.
Identity
- User-Agent Pattern
-
Blueno - Aliases
- Blueno/1.0; hit/1.1 (compatible; Blueno/1.0; +http://naver.me/scrap)
- HTTP Agent Examples
-
hit/1.1 (compatible; Blueno/1.0; +http://naver.me/scrap) - Robots Token
- Blueno
- Identity Type
- Officially documented
- Evidence Method
- Match Blueno and verify the request with NAVER's documented forward-confirmed reverse DNS or current network list.
Classification
- Type
- Preview
- Kind
- Fetcher
- Family
- NAVER
- Operator
- NAVER
- Company
- NAVER Corporation
- Purpose
- Link preview
Behavior and handling
- Common Use
- Fetching page metadata and summary information for NAVER link previews.
- Detection Notes
- NAVER identifies Blueno as a specialized collector used when links are inserted into products such as blog editors.
- Respects robots.txt
- Unknown
- Spoofing Risk
- The user-agent is spoofable; verify NAVER-controlled DNS or current network ownership.
- Risk
- Neutral
- Recommended Handling
- Depends
Rules and controls
- Robots.txt Snippet
-
User-agent: Blueno Disallow: / - Apache Rule
-
RewriteCond %{HTTP_USER_AGENT} Blueno [NC] RewriteRule .* - [F,L] - Nginx Rule
-
if ($http_user_agent ~* "Blueno") { return 403; }