Request Details

Route
/robots.txt GET
Timestamp
Sep 10, 2026 8:20 PM
Duration
10.0 ms
Status
200
Response Size
136 Bytes
Error
No

Performance Breakdown

Database
54.3% (1 query)
View Rendering
23.9%
Application Logic
21.7%
Other Operations
0.0%
Total Operations
3
Slowest Operation
25.0 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 11.5ms 23.0ms 34.5ms 46.0ms

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
robots.txt#index 10 ms 100.0%
layouts/application 11 ms 110.0%
SELECT * FROM (SELECT users.id, users.name, users.email, COUNT(posts.id) as post_count FROM users LEFT JOIN posts ON users.id = posts.user_id WHERE users.active = ? GROUP BY users.id) as user_posts JOIN (SELECT user_id, COUNT(*) as comment_count FROM c... 25 ms 250.0%