Caching entries
Падручнік па кэшаванню
Patricia Clausnitzer has kindly translated the Caching Tutorial to Belarusian. Thanks!...
published on Wednesday, June 30 2010 ( 4 comments )
Why Our New TV Doesn't Like the Web
A while back we used an absurd amount of reward points from our credit card to get some Myer gift certificates, and on the weekend these miraculously turned into...
published on Thursday, June 3 2010 ( 3 comments )
Caching-Tutorial für Webautoren und Webmaster
Thomas Hühn has graciously translated the caching tutorial into German. Thanks! See also the Chinese, Czech and French translations. To help the translators keep up with changes, I've started...
published on Wednesday, March 10 2010
Traffic Server
A long time ago*, the word in high-performance proxy-caching was Inktomi’s Traffic Server. It was so fast it was referred to being “carrier grade” and this could be said...
published on Friday, October 30 2009 ( 6 comments )
The Resource Expert Droid
A (very) long time ago, I wrote the Cacheability Engine to help people figure out how a Web cache would treat their sites. It has a few bugs, but...
published on Thursday, June 25 2009 ( 15 comments )
面向站长和网站管理员的Web缓存加速指南
The caching tutorial is now available in Chinese, courtesy of Che Dong (and apologies for taking so long in linking to it!). Norwegian should be coming soon......
published on Wednesday, June 17 2009 ( 1 comment )
What to Look For in a HTTP Proxy/Cache
Part of my job is maintaining Yahoo!’s build of Squid and supporting its users, which use it to serve everything from the internal Web services that make sites go...
published on Friday, June 12 2009 ( 3 comments )
Most Revealing Google Wave Comment
Everybody’s atwitter (yeah, sue me) about the Google Wave developer preview. Lots of new stuff there, but for me the most revealing comment, almost a throwaway, was here: Did...
published on Friday, May 29 2009 ( 7 comments )
Caching When You Least Expect it
There’s a rule of thumb about when a HTTP response can be cached; the Caching Tutorial says: If the response’s headers tell the cache not to keep it, it...
published on Tuesday, February 24 2009 ( 5 comments )
Dev-Friendly Web Caching
Ryan Tomayko announces Rack::Cache, a HTTP cache for Ruby’s generic Web API; The basic goal is standards-based HTTP caching that scales down to the early stages of a project,...
published on Monday, October 27 2008 ( 4 comments )
Cache Channels
The stale-while-revalidate and stale-if-error extensions aren’t the only fiddling we’ve been doing with the HTTP caching model. Now that Squid 2.7 is starting to see daylight, I can explain...
published on Friday, January 4 2008 ( 4 comments )
Two HTTP Caching Extensions
We use caching extensively inside Yahoo! to improve scalability, latency and availability for back-end HTTP services, as I’ve discussed before. However, there are a few situations where the plain...
published on Wednesday, December 12 2007 ( 16 comments )
ETags, ETags, ETags
I’ve been hoping to avoid this, but ETags seem to be popping up more and more often recently. For whatever reason, people latch onto them as a litmus test...
published on Tuesday, August 7 2007 ( 8 comments )
The State of Proxy Caching
A while back I wrote up the state of browser caching, after writing a quick-and-dirty XHR-based test page, with the idea that if people know how their content is...
published on Wednesday, June 20 2007 ( 13 comments )
Expires vs. max-age
I occasionally get a question from readers of the caching tutorial about whether to use the Expires header or Cache-Control: max-age to control a response’s freshness lifetime. Some people...
published on Tuesday, May 15 2007 ( 7 comments )
Squid is My Service Bus
The QCon presentation (slides) was ostensibly about how we use HTTP for services within Yahoo’s Media Group. When I started thinking about the talk, however, I quickly concluded that...
published on Sunday, April 29 2007 ( 6 comments )
Squid is My Service Bus
The QCon presentation (slides) was ostensibly about how we use HTTP for services within Yahoo’s Media Group. When I started thinking about the talk, however, I quickly concluded that...
published on Sunday, April 29 2007 ( 6 comments )
Caching Performance Notes
There have been some interesting developments in Web caching lately, from a performance perspective; event loops are becoming mainstream, and there are lots of new contenders on the scene....
published on Monday, August 21 2006 ( 15 comments )
Caching Web 2.0
I just finished my XTech presentation, “Web 2.0 on Speed”. here are the slides [pdf]; I’m going to try to s5 them soon. There isn’t much new in this...
published on Tuesday, May 16 2006 ( 7 comments )
The State of Browser Caching
Updated 2006-06-03 One of the big problems that Web developers have with HTTP caching is that they don’t know how the caches behave; while the specs say one thing, the...
published on Thursday, May 11 2006 ( 22 comments )
Invalidating Caches with POST
Have you ever posted a comment to a blog, found it missing, so you re-posted it, only to find two entries? Annoying, huh? Aaron pinged me the other day...
published on Saturday, February 18 2006 ( 12 comments )
Leveraging the Web: Caching
The first in an occasional series about the real-world benefits of REST and the Web architecture, as applied to HTTP. I used to work for a fairly huge company...
published on Saturday, November 26 2005 ( 6 comments )
Prefetching (again)
There’s been quite a kerfuffle over Google’s Web Accelerator, because it prefetches Web content. It’s amusing to see these issues recycle over time; in the late nineties, prefetching was...
published on Sunday, May 22 2005 ( 1 comment )
Google's Cache-Control Extensions
I happened to look at the HTTP headers returned from Google News just now (what can I say, I’m a HTTP geek), and I noticed something unusual; Last login:...
published on Thursday, May 12 2005 ( 5 comments )
Caching Tutorial Update
I’ve published a revision of the Caching Tutorial for Web Authors and Webmasters, the first non-trivial edit in some time almost since I wrote it in 1998. That said, there...
published on Sunday, February 15 2004
Caching is often enough
I feel compelled to respond to Norm Walsh's thoughts on caching. It's important to distinguish between the capabilities of a specific product (such as WWWoffle) and the technology that it...
published on Saturday, June 28 2003