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codecrafters.io · AI

Is CodeCrafters down?

Checks are succeeding, user reports are near the baseline, and the vendor status page is clear.

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What's broken? (optional)
Is it just me?
No problems detected

Live diagnosis

Is it just me?

Finds the most likely layer (the service, your ISP or area, DNS, or your Wi-Fi) and gives two steps to try.

Your browser → codecrafters.io—
Your browser → us—
Our checksReaching it
Official · ReportsAll clear · Near baseline
DNS (1.1.1.1 · Google)—
Your provider—
Connection—
Upstream—

Press Run testYour browser tests the site, us, and two public DNS resolvers. We never store your IP; only anonymous counts by network and region.

Live outage map

No reports in the last 24 hours.

Dots are whole states, provinces or countries, never exact locations. We never store IP addresses. Every report with a known place can appear on the map. Updates every minute.

Recent reports

Each row is a time, a coarse place, and a problem type from a new report. Optional notes stay private. Places with fewer than 3 reports in the last 8 days are shown without a location.

No public reports yet.

User reports

0

Near baseline. 0 in the last hour. Typical hour is about 0.

Our checks

Reaching it

Last checked 30 min ago. Last stored result reached it in 180 ms.

Reports and checks

Numbers behind the chart
Time (UTC)ReportsBaselineLatencyFailed checks
Mon 1500.0133 ms0
Mon 1700.0183 ms0
Mon 1900.0102 ms0
Mon 2100.0180 ms0
Mon 2300.0124 ms0
Tue 0100.0179 ms0
Tue 0300.089 ms0
Tue 0600.0284 ms0
Tue 0800.0116 ms0
Tue 1000.093 ms0
Tue 1200.071 ms0
Tue 1400.0141 ms0
Tue 1600.0270 ms0
Tue 1900.0159 ms0
Tue 2100.0296 ms0
Tue 2300.093 ms0
Wed 0100.0106 ms0
Wed 0400.0223 ms0
Wed 0600.0137 ms0
Wed 0800.0170 ms0
Wed 1000.068 ms0
Wed 1200.0121 ms0
Wed 1300.048 ms0
Wed 1500.0108 ms0
Wed 1700.0121 ms0
Wed 1900.0224 ms0
Wed 2100.0160 ms0
Wed 2300.0136 ms0
Thu 0100.0130 ms0
Thu 0300.0187 ms0
Thu 0500.0132 ms0
Thu 0800.0256 ms0
Thu 1000.0223 ms0
Thu 1200.0116 ms0
Thu 1400.0202 ms0
Thu 1600.077 ms0
Thu 1800.073 ms0
Thu 2000.0192 ms0
Thu 2200.0124 ms0
Fri 0000.0289 ms0
Fri 0200.093 ms0
Fri 0400.0220 ms0
Fri 0600.096 ms0
Fri 0800.082 ms0
Fri 1000.094 ms0
Fri 1200.0107 ms0
Fri 1400.0102 ms0
Fri 1600.0180 ms0

Reliability

Score 100/100 · grade A

100%Uptime · 30 days
100%Uptime · 90 days
0 / 0Outages · 30 / 90 days
—Average outage

100% uptime · No user reports in the last 24h

90 days ago → today. Uptime is from our own HTTP checks; outages are incidents that lasted long enough to list. We have 8 days of data so far, so the 90-day numbers fill in over time.

CodeCrafters status badge Embed this status: free live CodeCrafters badge

Free, no iframe or script. Updates every minute and links back here. More options on the embed page · badge docs · JSON · MCP server

CodeCrafters status and 30-day uptime badge

Community comments

Share what you are seeing with CodeCrafters. No account needed. Comments are public, separate from outage reports. Do not include personal information.

No links or domains. 3 comments per service and 6 total per hour, per device and network. New contributors get one visible comment; further comments wait for review.

Past outages

No outages on record for CodeCrafters yet. Outages of 10 minutes or more get their own page here.

All CodeCrafters outages · Every recent outage

Having trouble with CodeCrafters?

One report per service every 10 minutes from this network. No account.

What's broken? (optional)

Notes are stored for rate-limit context and are not shown publicly.

About CodeCrafters

We track CodeCrafters (codecrafters.io) as part of the AI group. Build your own Redis, Git, SQLite, and more from scratch. Advanced challenges designed for experienced engineers, used by developers at Google, OpenAI, and Vercel.

CodeCrafters publishes an official status page at status.codecrafters.io; when we can read it, its incident level is folded into the status shown here.

Common problems for AI services: slow or failed responses, rate-limit errors, and API timeouts.

Measured uptime from our checks: 100% over 8 days of checks. No public incidents logged since monitoring began 8 days ago.

Response time over the last 24 hours: 134 ms average, 70–289 ms range across 13 successful checks.

Questions

Is CodeCrafters down right now?

Checks are succeeding, user reports are near the baseline, and the vendor status page is clear.

When was CodeCrafters last down?

We have not recorded a public CodeCrafters incident since monitoring began 8 days ago.

What is CodeCrafters's uptime?

From our own checks: 100% over 8 days of checks.

How fast does CodeCrafters respond?

134 ms on average over the last 24 hours (70–289 ms).

Does CodeCrafters have an official status page?

Yes, at https://status.codecrafters.io.

CodeCrafters not working for me but the status is fine. What now?

It is usually local: try another browser or the app, switch between Wi-Fi and mobile data, and clear the cache. For AI services, watch for slow or failed responses, rate-limit errors, and API timeouts. If many people report CodeCrafters here at once, the problem is on CodeCrafters's side.

How we detect and verify outages · Dispute this report · We review disputes within 24 hours.