Request Details

Route
/robots.txt GET
Timestamp
Sep 22, 2026 2:26 AM
Duration
10.0 ms
Status
204
Response Size
141 Bytes
Error
No

Performance Breakdown

Database
41.9% (2 queries)
View Rendering
29.5%
Application Logic
28.6%
Other Operations
0.0%
Total Operations
7
Slowest Operation
30.0 ms

Request Trace

How to read this

Each row is a layer of your stack. Many short Database bars means N+1 queries — fix with includes(). A wide Action bar with little Database time means slow Ruby code. A wide View bar usually means a partial rendered in a loop.

Action
View
Database
Other
Action
View
Database
0.0ms 26.3ms 52.5ms 78.8ms 105.0ms

Operations

How to use this

Sort by Impact to find your biggest wins. Click any row for details and optimisation suggestions. The same SQL appearing multiple times is an N+1 — fix with includes(). A single operation above 50% impact is your highest priority.

Operation Duration Impact Timeline Actions
posts/show 12 ms 120.0%
robots.txt#index 10 ms 100.0%
SELECT * FROM users LEFT JOIN posts ON users.id = posts.user_id LEFT JOIN comments ON posts.id = comments.post_id LEFT JOIN tags ON posts.id = tags.post_id LEFT JOIN categories ON posts.category_id = categories.id WHERE users.active = ? AND posts.publi... 30 ms 300.0%
home/index 19 ms 190.0%
robots.txt#index 10 ms 100.0%
robots.txt#index 10 ms 100.0%
SELECT users.*, posts.*, comments.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, AVG(posts.view_count) as avg_views, MAX(comments.created_at) as latest_comment FROM users LEFT JOIN posts ON users.id = posts.use... 14 ms 140.0%