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HTTP/1.1 200 OK
Connection: keep-alive
Server: nginx/1.24.0 (Ubuntu)
Content-Type: text/html; charset=utf-8
Cache-Control: public, max-age=300
Content-Encoding: gzip
Via: 1.1 varnish, 1.1 varnish
Accept-Ranges: bytes
Age: 0
Date: Sat, 17 Jan 2026 11:51:54 GMT
X-Served-By: cache-dfw-kdal2120043-DFW, cache-bom-vanm7210021-BOM
X-Cache: MISS, MISS
X-Cache-Hits: 0, 0
X-Timer: S1768650715.524459,VS0,VE364
Vary: Accept, Accept-Encoding
transfer-encoding: chunked
hsdns-cache: Caching asynchronous DNS resolver.
hsdns-cache: Caching asynchronous DNS resolver.
Deprecated
in favor of concurrent-dns-cache
Caching asynchronous DNS resolver built on top of GNU ADNS https://www.chiark.greenend.org.uk/~ian/adns/.
Resolves several IP addresses for one host (if available) in round-robin fashion.
Throttles number of parallel requests (so DNS resolving continues to work even under heavy load).
Errors are cached too (for one minute).
Handles CNAMEs (
hsdnsreturns error for them).
This cache is tested in a long running web-crawler (used in https://bazqux.com) so it should be safe to use it in real world applications.
Downloads
- hsdns-cache-1.0.4.tar.gz [browse] (Cabal source package)
- Package description (as included in the package)
Maintainer's Corner
For package maintainers and hackage trustees
Candidates
- No Candidates
| Versions [RSS] | 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4 |
|---|---|
| Dependencies | base (>=4 && <5), hsdns, network, SafeSemaphore, text, time, unordered-containers [details] |
| License | BSD-3-Clause |
| Copyright | Vladimir Shabanov 2013 |
| Author | Vladimir Shabanov <vshabanoff@gmail.com> |
| Maintainer | Vladimir Shabanov <vshabanoff@gmail.com> |
| Uploaded | by VladimirShabanov at 2013-05-30T23:13:12Z |
| Category | Network |
| Home page | https://github.com/bazqux/hsdns-cache |
| Source repo | head: git clone https://github.com/bazqux/hsdns-cache |
| Distributions | |
| Reverse Dependencies | 1 direct, 0 indirect [details] |
| Downloads | 3994 total (21 in the last 30 days) |
| Rating | (no votes yet) [estimated by Bayesian average] |
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| Status | Docs available [build log] Successful builds reported [all 3 reports] |