Bots Overwhelmed Bear’s Reverse Proxy—What Broke and How It’s Now Hardened

Bear Blog suffered a major outage when its reverse proxy was overwhelmed by aggressive bot traffic, and monitoring failed to alert. While origin servers scaled, the proxy—upstream of most protections—became the choke point and crashed. The author added redundant monitoring, stricter proxy-level controls, more capacity, auto-recovery, and a status page, noting the ongoing arms race against bots.

Key Points

• Outage cause: the reverse proxy for custom domains was overwhelmed by a massive spike in bot traffic, and monitoring failed to alert.
• Bot landscape: identifiable AI scrapers (partly allowed), malicious vulnerability scanners, and unchecked hobbyist scrapers that can unintentionally DDoS sites.
• Observed behavior: millions of malicious requests and heavy IP rotation, likely via mobile-network tunnels, heightening the difficulty of blocking.
• Existing mitigations worked at the origin layer, but the proxy—upstream of many defenses—was the single point that saturated and toppled.
• Fixes: redundant multi-channel monitoring, tougher proxy-level rate limiting, 5x proxy capacity, auto-restart on zero bandwidth, and a public status page.

Sentiment

The community is strongly sympathetic to the article's author and agrees that aggressive bot traffic is a serious and worsening problem for small web operators. There is widespread frustration with residential proxy networks and the breakdown of web norms like robots.txt. While commenters differ on solutions—some favoring technical defenses, others calling for legal action or accepting centralized protection—the core message that indie web services are under siege resonates deeply. Hacker News broadly agrees with the article's framing of an escalating arms race.

In Agreement

• Residential proxy services like BrightData embed SDKs in free apps and VPNs, turning unsuspecting users' devices into bot endpoints and making IP blocking futile due to CGNAT
• Bot traffic has become dramatically worse in the past year, with modern bots defeating user-agent detection, IP rate limiting, and even TLS fingerprinting
• The self-governing norms of the web like robots.txt are breaking down as scrapers routinely ignore them, and legislation will take years to catch up
• Indie blog hosting platforms like Bear Blog are worth fighting for as essential infrastructure for a healthy human internet
• Small operators without unlimited bandwidth budgets are disproportionately harmed by aggressive scraping that amounts to de facto DDoS

Opposed

• Scraping public data is legal and essential—many large platforms built their own products on scraping, so the anti-scraping sentiment is hypocritical
• The Bear Blog author should consider exiting the indie hosting business because conditions will only worsen as the internet decays
• Relying on Cloudflare leads to dangerous internet centralization and should be avoided even if it solves the immediate problem
• The problem is not technically solvable without introducing identity verification or pay-per-request models that infringe on anonymity