Over the past 24+ hours, we’ve seen yet another major disruption tied to Cloudflare — specifically impacting sites using their free proxy tier.
While official status pages downplayed or quickly cleared the issue, real-world impact tells a different story.
⚠️ What Actually Happened
Across multiple environments — including GoDaddy-hosted servers and private datacenter infrastructure — sites behind Cloudflare experienced:
- Intermittent or complete connection failures
- SSL handshake issues
- Proxy loops and repeated request floods
- Unstable routing between Cloudflare edge and origin servers
Despite Cloudflare reporting systems as “operational,” many sites remained unreachable or degraded.
🔥 Firewalls Started Locking Down Systems
This is where things got worse.
Due to abnormal traffic patterns and repeated failed SSL attempts, multiple firewall systems were triggered automatically:
- firewalld began enforcing stricter rules
- Imunify360 flagged and blocked traffic aggressively
- CSF (ConfigServer Firewall) started rate-limiting or outright blocking IP ranges
In many cases, these protections had previously been relaxed or stable — until Cloudflare’s behavior triggered them.
🔁 Proxy Loops & Traffic Flooding
One of the most concerning patterns observed was what appeared to be a loopback-style request behavior:
- Repeated requests bouncing between Cloudflare and origin
- Unexpected traffic spikes without legitimate user activity
- High connection counts hitting NGINX/Apache simultaneously
This created a scenario where both the origin server and Cloudflare appeared to be amplifying traffic unintentionally.
🧯 24 Hours of Cleanup
For many system operators, the fix wasn’t automatic.
It required:
- Disabling Cloudflare proxy (gray cloud)
- Flushing firewall bans and IP tables
- Restarting services (NGINX, Apache, PHP-FPM)
- Re-evaluating SSL configurations
- Monitoring for continued abnormal traffic
This was not a minor hiccup — it was hours of manual intervention.
🤐 Where Was Cloudflare?
Despite widespread impact, there has been little to no clear communication from Cloudflare explaining:
- What caused the issue
- Why traffic patterns became unstable
- Why firewall-triggering behavior occurred
- Why some systems remained impacted long after “resolution”
This lack of transparency is becoming a pattern — especially for users on the free tier.
🚨 The Bigger Problem
This isn’t the first time.
We’ve repeatedly observed instability tied to Cloudflare’s proxy layer, particularly involving:
- Ingestion servers
- High-traffic WordPress environments
- Custom NGINX/CDN setups
When things go wrong, the combination of proxy + firewall automation creates a cascading failure.
💡 Recommendations
- Always have a bypass method (direct origin IP or hosts file testing)
- Monitor firewall triggers closely during outages
- Consider disabling proxy temporarily when instability appears
- Do not rely solely on Cloudflare status pages
🚀 Final Thoughts
Cloudflare is a powerful tool — but it’s not infallible.
When outages happen, the impact goes far beyond downtime. It affects infrastructure behavior, security systems, and hours of recovery work.
Until Cloudflare improves transparency and stability, every operator should treat it as a potential point of failure — not just a protection layer.
