Outage in Addgene
Intermittent page failures
Resolved MinorIncident Report
On the heels of the Cloudflare downtime, we are still experiencing an elevated error rate related to their service. A small percentage of requests (~7%) are still failing with a 500 from Cloudflare. This affects all of our sites.
If this happens to you, refresh the page. It's very likely the page will load on the 2nd attempt.
We will continue to monitor and improve the situation where we can.
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Latest Updates ( sorted recent to last )
RESOLVED
3 months ago - at 11/18/2025 05:18PM
The error rate dropped to 0% at 12:03 PM EST. This is the first time it's been zero since the original Cloudflare failure at approximately 06:25 AM EST this morning.
We believe this issue is fully resolved at this point. Cloudflare is also acknowledging the error rates are back to normal.
Once again, our sincere apologies. We understand how frustrating it is when the website isn't ready and responsive.
As always, we will try to learn from this failure and implement safeguards to mitigate issues in the future.
MONITORING
3 months ago - at 11/18/2025 04:44PM
The error rate continues to improve, now below 3%
MONITORING
3 months ago - at 11/18/2025 04:16PM
The error rate is slowly improving, now down to about 5%
MONITORING
3 months ago - at 11/18/2025 03:42PM
On the heels of the Cloudflare downtime, we are still experiencing an elevated error rate related to their service. A small percentage of requests (~7%) are still failing with a 500 from Cloudflare. This affects all of our sites.
If this happens to you, refresh the page. It's very likely the page will load on the 2nd attempt.
We will continue to monitor and improve the situation where we can.
Latest Addgene outages
Logins failing - about 1 month ago
Websites not loading - 3 months ago
Degraded services - 4 months ago
PubMed article searches failing - 8 months ago
Site unavailability - about 1 year ago
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