CMake/ITKExternalData.cmake still lists cloudflare-ipfs.com as an ExternalData mirror. Cloudflare retired that gateway and the hostname no longer resolves, so every fetch that reaches this entry spends a DNS failure before falling through to the next mirror.
Evidence
On upstream/main, CMake/ITKExternalData.cmake (mirror list, ~lines 62-63):
# Cloudflare gateway
"https://cloudflare-ipfs.com/ipfs/%(hash)"
host cloudflare-ipfs.com returns no address — the name is retired (NXDOMAIN).
The other IPFS gateways in the list (ipfs.io, ipfs.filebase.io,
gateway.pinata.cloud, dweb.link) are unaffected by this issue.
Proposed work
Delete the two lines. No replacement is needed — the remaining gateways already
provide redundancy. If a Cloudflare gateway is still wanted, the current
hostname would have to be confirmed first rather than assumed.
CMake/ITKExternalData.cmakestill listscloudflare-ipfs.comas an ExternalData mirror. Cloudflare retired that gateway and the hostname no longer resolves, so every fetch that reaches this entry spends a DNS failure before falling through to the next mirror.Evidence
On
upstream/main,CMake/ITKExternalData.cmake(mirror list, ~lines 62-63):host cloudflare-ipfs.comreturns no address — the name is retired (NXDOMAIN).The other IPFS gateways in the list (
ipfs.io,ipfs.filebase.io,gateway.pinata.cloud,dweb.link) are unaffected by this issue.Proposed work
Delete the two lines. No replacement is needed — the remaining gateways already
provide redundancy. If a Cloudflare gateway is still wanted, the current
hostname would have to be confirmed first rather than assumed.