Request Details

Route
/robots.txt GET
Timestamp
Sep 17, 2026 9:03 PM
Duration
10.0 ms
Status
204
Response Size
100 Bytes
Error
No

Performance Breakdown

Database
33.6% (2 queries)
View Rendering
52.7%
Application Logic
13.7%
Other Operations
0.0%
Total Operations
7
Slowest Operation
34.0 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 36.5ms 73.0ms 109.5ms 146.0ms

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
layouts/application 20 ms 200.0%
posts/show 23 ms 230.0%
SELECT name FROM users 30 ms 300.0%
robots.txt#index 10 ms 100.0%
posts/show 34 ms 340.0%
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... 19 ms 190.0%