Request Details

Route
/robots.txt GET
Timestamp
Sep 19, 2026 10:05 PM
Duration
10.0 ms
Status
204
Response Size
100 Bytes
Error
No

Performance Breakdown

Database
51.7% (3 queries)
View Rendering
34.5%
Application Logic
13.8%
Other Operations
0.0%
Total Operations
8
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 36.3ms 72.5ms 108.8ms 145.0ms

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
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 30 ms 300.0%
robots.txt#index 10 ms 100.0%
layouts/application 13 ms 130.0%
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... 15 ms 150.0%
SELECT name FROM users 30 ms 300.0%
home/index 15 ms 150.0%
posts/show 22 ms 220.0%
robots.txt#index 10 ms 100.0%