Bug Fix & Diagnosis
$375.99
Or pay €335.29 · £280.79 at today's rate — the rate is locked when you add it to your basket.
One fixed-price scope, delivered in one pass: Bug Fix & Diagnosis. - 1 revision
Delivered in 5 days
Revisions included: 0
Web application bug fix and performance repair with root cause explanation
Sold by Zinn Digital
Accurate root-cause diagnosis and targeted repair for slow or broken web applications, complete with a clear explanation of all changes.
At a glance
- Price
- $375.99
- Delivery
- Delivered in 5 days
- Seller
- Zinn Digital
- Sold
- 0
About this listing
This service is focused strictly on repair work rather than a full rebuild. If your application suffers from an error-throwing page, a form that loses data, or an overly sluggish request, we track down the underlying cause and fix it without rewriting your product.
We begin by precisely reproducing the issue using the same inputs and environment to confirm the failure directly. If a fault cannot be reproduced, we do not claim to have resolved it.
Next, we narrow down the problem by examining logs, network traces, and bisecting the commit history. For performance problems, we profile instead of guessing, as a slow database query differs significantly from a slow template render. Intermittent faults are investigated through shared resources such as connection pools, locks, or colliding cache keys.
The repair is kept to the smallest change that removes the root cause. If the issue is architectural, we explain this clearly and offer an interim mitigation alongside a separately scoped proper fix, giving you factual evidence to make your decision.
What you receive
- A written diagnosis covering what was wrong, why, and the supporting evidence.
- The applied and tested patch, with the reproduction case converted into a regression test.
- A short note flagging any related risks nearby, ordered by urgency.
What we need from you
Repository access, a reliable way to reproduce the problem through steps, a screen recording, or a usable account, and any available error text or log output. For performance issues, a rough guide on an acceptable result is helpful.
Timing and communication
Diagnosis is typically delivered on the same day with evidence included, followed by the patch once you approve the approach. No changes are made without your knowledge; you receive the diff, the regression test, and an explanation of the fault. If a fix requires more work than the symptom suggested, you will be informed before any work begins.
What you can buy
No account needed first — yours is created at checkout. We hold the money until you accept the work.
Questions and answers
What if the fix needs a rewrite?
We will inform you clearly with supporting evidence and quote any rewrite work separately. This service is designed to fix existing code rather than turn into an unrequested rebuild.
How fast can you start?
Diagnosis can generally start on the same day. We verify that we can reproduce the issue before providing a timeframe for the actual fix.
Do you need production access?
A staging environment capable of reproducing the bug is enough. If the problem only occurs in production, we will ask for logs prior to requesting direct access.