Cal.com

See the uptime of Cal.com

Nov 18, 2025

20 days ago

Our upstream provider Cloudflare is experiencing Global Network Issues that are affecting Cal.com

AppWebsiteAPICal Video

Monitoring November 18 at 12:01 PM

We are actively monitoring https://www.cloudflarestatus.com/incidents/8gmgl950y3h7 for updates.

Aug 20, 2025

4 months ago

We are experiencing a major degradation of service across the app

App

Resolved August 20 at 5:04 PM (in 18 minutes)

Our downstream provided resolved the issue triggering this. Service has been restored.

Identified August 20 at 4:54 PM (10 minutes earlier)

One of our downstream providers has informed us they are fixing an issue and it will be addressed within the next few minutes.

Investigating August 20 at 4:47 PM (8 minutes earlier)

Jun 11, 2025

6 months ago

Some requests to Google Calendar failing

Resolved June 23 at 3:30 PM (in 12 days)

This has been resolved. Service is back to normal.

Investigating June 23 at 2:13 PM (1 hour earlier)

We are again seeing some calls to Google Calendar APIs failing which will impact events being created and removed. We are urgently investigating.

Resolved June 11 at 3:24 PM (12 days earlier)

We have confirmed the fix brings systems back to normal.

Monitoring June 11 at 2:41 PM (43 minutes earlier)

We identified what was causing requests to Google Calendar to fail and are monitoring to verify systems are back to normal.

Investigating June 11 at 2:28 PM (14 minutes earlier)

We are seeing a small % of failing requests to modify calendar events on Google Calendar.

Jun 20, 2025

6 months ago

We are experiencing some downtime due to database issues.

Resolved June 20 at 1:41 PM (in 57 minutes)

Systems are back to normal.

Monitoring June 20 at 1:14 PM (28 minutes earlier)

We have found the root cause and have a fix in place. We will continue to monitor to ensure all systems are back.

Investigating June 20 at 12:44 PM (30 minutes earlier)

We large spike in traffic has caused stress on our database. We are investigating urgently.

Apr 23, 2025

8 months ago

Database issues causing 500s

Resolved April 23 at 4:52 PM (in 4 hours)

We have found and fixed the root cause of these issues.

Identified April 23 at 12:26 PM (4 hours earlier)

We are seeing 500s happening on both the web app and API due to a database overload issue. We are actively investigating and will provide updates as soon as possible.

Mar 24, 2025

9 months ago

Brief Booking Page downtime (404 Error)

Resolved March 24 at 2:00 AM

Due to a faulty deployment, for a brief moment at 11pm EST the booking pages returned a 404 error for about 15 minutes. This was quickly resolved.

Feb 18, 2025

10 months ago

DDOS Database error (code 500)

Resolved February 18 at 3:21 PM

We got hit by an uncaught DDOS which temporarily broke the application and threw a 500 error and experienced a downtime of 2 minutes.

Feb 4, 2025

10 months ago

Emails not being sent.

Resolved February 4 at 12:50 PM

Emails are currently not being sent due to a false positive restriction in our Twilio Sendgrid account. The restriction is being lifted.

Apr 14, 2024

2 years ago

Planned Maintenance

Identified April 14 at 5:03 PM

We are currently performing planned maintenance. Cal.com will be back up and running shortly.

Mar 12, 2024

2 years ago

We are currently investigating issues with our database.

Resolved March 12 at 6:17 PM (in 9 minutes)

Problem has been solved.

Investigating March 12 at 6:07 PM (9 minutes earlier)

We are currently investigating an issue with our database causing slowness of the system.

Feb 3, 2024

2 years ago

slowness of several endpoints

App

Resolved February 3 at 9:33 PM (in 43 minutes)

We've successfully managed to fight off this attack and are recovering systems.

Identified February 3 at 9:05 PM (28 minutes earlier)

We have identified a coordinated DDOS attack and failed SQL injection attempts from German IP addresses

Identified February 3 at 8:55 PM (10 minutes earlier)

We are not excluding a third-party coordinated attack. Experiencing unusual activity on some serverless actions

Identified February 3 at 8:50 PM (5 minutes earlier)

We are currently experiencing severe slowness on multiple endpoints