Request Details

Route
/robots.txt GET
Timestamp
Sep 23, 2026 12:42 AM
Duration
10.0 ms
Status
204
Response Size
139 Bytes
Error
No

Performance Breakdown

Database
90.8% (6 queries)
View Rendering
9.2%
Application Logic
0.0%
Other Operations
0.0%
Total Operations
7
Slowest Operation
26.0 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
View
Database
0.0ms 21.8ms 43.5ms 65.3ms 87.0ms

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 8 ms 80.0%
SELECT users.*, COUNT(DISTINCT posts.id) as post_count, COUNT(DISTINCT comments.id) as comment_count, SUM(posts.view_count) as total_views, AVG(posts.view_count) as avg_views, MIN(posts.created_at) as first_post, MAX(posts.created_at) as latest_post FR... 14 ms 140.0%
SELECT * FROM users WHERE id = ? 12 ms 120.0%
SELECT * FROM users WHERE id = ? 26 ms 260.0%
SELECT id, name FROM users WHERE email = ? 16 ms 160.0%
SELECT * FROM comments WHERE post_id = ? ORDER BY created_at DESC LIMIT ? 10 ms 100.0%
SELECT name FROM users 1 ms 10.0%