Cloudflare misidentifies Hetzner IPs as being located in Iran

Original Article ↗ Hacker News Discussion ↗

Cloud infrastructure users report that Cloudflare, Google and other services are incorrectly classifying some Hetzner IP ranges as being located in Iran, causing container registries and other resources to be blocked under US sanctions rules. Commenters highlight how inaccurate commercial IP‑geolocation databases, automated geo‑blocking and “better safe than sorry” legal interpretations combine to lock out legitimate traffic while determined users bypass restrictions with VPNs. The incident feeds into wider concerns about Cloudflare’s growing gatekeeper power, the fragility of the “open web,” and how sanctions, GDPR and other regulatory regimes incentivize blunt, location-based blocking that often harms ordinary users more than targeted bad actors.

Misclassified Hetzner IPs and Operational Impact

  • Multiple reports of Hetzner IPs being treated as Iranian by Cloudflare, Google, Oracle Cloud and others.
  • Concrete breakages: Kubernetes nodes unable to pull images from Google container registries (including official k8s images), Elastic registry issues, CI builds randomly failing as autoscaling lands on “tainted” IPs.
  • IPv6 sometimes works as a workaround, but many registries (e.g., GitHub) lack full IPv6 support.
  • GitLab reportedly can’t fix it while depending on Cloudflare; issue considered unresolved by some.

Proposed Causes of Misclassification

  • Common hypothesis: Hetzner acquired IPv4 ranges previously used by Iranian hosts/CDNs, and geo/databases didn’t update.
  • Others suggest correlation from VPN/tunnel usage (Hetzner IPs heavily used by Iranian users; Accept-Language and GPS data feed into models).
  • Similar mislocation anecdotes for other providers (Linode IPv6, Tor exit relays, “Japan” vs US IP confusion).
  • One commenter points to a specific case where an IP had a prior life in an Iran-based ad CDN.
  • Several note Cloudflare likely relies on MaxMind-style geolocation; IPinfo describes how they try to avoid such errors with active measurements and rapid corrections.

GeoIP Blocking, Sanctions, and Compliance

  • Many services block by country for:
    • Security (reducing spam, brute-force, scanners).
    • Regulatory reasons (US sanctions, OFAC, ITAR; fear of personal and corporate liability).
    • GDPR avoidance (some US sites block all EU IPs).
  • Disagreement over legal necessity: some say sanctions don’t require blanket IP blocking and explicitly allow many internet/info flows; companies over-comply for CYA.

Effectiveness and Ethics of Country/IP Blocking

  • Critics: GeoIP is error-prone and trivial to bypass with VPNs, while harming innocents (e.g., Iranian students, regular Russian users).
  • Supporters: even inaccurate blocking reduces risk and unwanted traffic cheaply; some customers “aren’t worth having.”
  • Debate over collective punishment vs targeting regimes; whether cutting off services actually helps weaken adversarial governments or just reinforces propaganda.

Cloudflare’s Role and DDoS Protection Debate

  • Some see Cloudflare’s dominance and false positives (e.g., blocking privacy-hardened browsers) as centralizing power and undermining open access.
  • Others describe Cloudflare as the only affordable, effective way small sites could stop major DDoS and bot abuse after extensive failed DIY attempts.
  • Discussion of alternatives finds many solutions expensive or less accessible; contention over whether dependency on Cloudflare is “lazy” or pragmatic.

GDPR, Identity, and IP Address Subthread

  • Long side debate on:
    • GDPR scope and difficulty: some say “don’t track, delete reasonably fast” is easy; others describe heavy process, documentation, and deletion obligations.
    • IP addresses as personal data under GDPR vs their use for analytics and blocking.
    • Divergent national practices around proof of residence and centralized address records.

Broader Political and Social Context

  • Sanctions discussion expands to US global sanctions footprint, multipolar vs unipolar world, and how passport/ nationality massively shapes access to services, travel, and opportunity.
  • First-hand accounts from sanctioned/isolated countries (Iran, Russia) highlight daily service blocks, payment issues, and feelings of being punished for government actions they can’t realistically influence.
  • Others counter that these hardships are an inevitable part of pressure on aggressive regimes, and Western states have limited non-military tools.