May 13
YSlow F to A
Posted by eDWARD at 23:12
折腾半天终于从F飞越到了A，得分是91，就差CDN部分是F，希望借此可以让速度和体验得到一些改善，以弥补空间在美国的问题。最近有时间会多更新些东西，包括对于产品和技术上的研究和趋势，以及对史记到资治通鉴的阅读感悟和看法，欢迎订阅：）
May 13
Web Page Speed Report
Posted by eDWARD at 22:48
Diagnosis
Global Statistics
| Total HTTP Requests: | 8 |
| Total Size: | 31867 bytes |
Object Size Totals
| Object type | Size (bytes) | Download @ 56K (seconds) | Download @ T1 (seconds) |
|---|---|---|---|
| HTML: | 6529 | 1.50 | 0.23 |
| HTML Images: | 12844 | 3.36 | 0.87 |
| CSS Images: | 6422 | 1.68 | 0.43 |
| Total Images: | 19266 | 5.04 | 1.3 |
| Javascript: | 6072 | 1.41 | 0.23 |
| CSS: | 0 | 0.00 | 0.00 |
| Multimedia: | 0 | 0.00 | 0.00 |
| Other: | 0 | 0.00 | 0.00 |
External Objects
| External Object | QTY |
|---|---|
| Total HTML: | 1 |
| Total HTML Images: | 4 |
| Total CSS Images: | 2 |
| Total Images: | 6 |
| Total Scripts: | 1 |
| Total CSS imports: | 0 |
| Total Frames: | 0 |
| Total Iframes: | 0 |
Page Objects
| SIZE# | TYPE | URL | COMMENTS | ||
|---|---|---|---|---|---|
| 6529 | HTML | http://www.zhangzhang.net | Header size = 468 bytes Congratulations! This file was compressed. |
||
| 6072 | SCRIPT | http://www.zhangzhang.net/static/js/1/sh.js | Header size = 490 bytes Congratulations! This file was compressed. |
||
| 4497 | CSS* | http://www.zhangzhang.net/static/css/1/base.css | Header size = 473 bytes | ||
| 3211 | IMG | www.zhangzhang.net … static/img/technorati.png | Header size = 338 bytes | ||
| 3211 | IMG | http://www.zhangzhang.net/static/img/gmail.png | Header size = 338 bytes | ||
| 3211 | IMG | http://www.zhangzhang.net/static/img/feed.gif | Header size = 338 bytes Missing width attribute. |
||
| 3211 | CSS IMG | http://www.zhangzhang.net/static/img/date-bg.gif | Header size = 338 bytes | ||
| 3211 | CSS IMG | http://www.zhangzhang.net/static/img/body_bg.jpg | Header size = 338 bytes | ||
| 3211 | IMG | http://www.zhangzhang.net/static/img/about.jpg | Header size = 338 bytes Missing width attribute. |
||
| 8 ^ | 31867* | Total (^unique objects) | |||
Analysis and Recommendations
- TOTAL_HTML – Congratulations, the total number of HTML files on this page
(including the main HTML file) is 1 which most browsers can
multithread. Minimizing HTTP requests is key for web site
optimization. Y - TOTAL_OBJECTS – Congratulations, the total objects on this page
(including the HTML) is 8 which most browsers can
multithread in a reasonable amount of time. Minimizing HTTP requests is key to minimizing object overhead (see Figure II-3: Relative distribution of latency components showing that object overhead dominates web page latency in Website Optimization Secrets for more details on how object overhead dominates web page latency. - TOTAL_IMAGES – Congratulations, the total number of images on
this page is 6 . Most browsers can send multiple
requests, which can speed display of multiple images. - TOTAL_SIZE – Congratulations, the total size of this page is
31867 bytes. This page should load in 7.95 seconds on a 56Kbps modem. Based on current average web page size and composition trends you want your page to load in less than 20 seconds on a 56Kbps connection, with progressive feedback. Ideally you want your page to load in 3 to 4 seconds on a broadband connection, and 8 to 12 seconds for the HTML on a dialup connection. Of course, there’s always room for improvement. - TOTAL_SCRIPT – Congratulations, the total number of external
script files on this page is 1 . External scripts are
less reliably cached than CSS files so consider combining scripts
into one to minimize HTTP requests, or even embedding them into high-traffic pages. Placing external JavaScript files at the bottom of your BODY, and CSS files in the HEAD enables progressive display in XHTML web pages. - HTML_SIZE – Congratulations, the total size of this HTML file
is 6529 bytes, which less than 50K. Assuming that you specify
the HEIGHT and WIDTH of your images, this size allows your HTML to
display content in under 10 seconds, the average time users are
willing to wait for a page to display without feedback. - IMAGES_SIZE – Congratulations, the total size of all your
images is 19266 bytes, which is less than 50K. Even with a 50K HTML page this page should load in less than 20 seconds on a 56Kbps connection. Ideally each
image should be less than 1160 bytes, to easily fit into one TCP-IP
packet. - SCRIPT_SIZE – Congratulations, the total size of all your external
scripts is 6072 bytes, which is less than 8K. - MULTIM_SIZE – Congratulations, the total size of all your
external multimedia files is 0 bytes, which is less than
10K.
Apr 28
Facebook Open Stream API
Posted by eDWARD at 10:44
Open Stream API将使Facebook的用户生成内容最终可在许多地方使用，如无需网络浏览器的新型网络服务，以及专业化的手机应用程序等，这是Facebook将其内容“出口”到整个网络的最重要的一项措施。
Apr 28
about swine flu with twitter
Posted by eDWARD at 10:39
Twitter每小时发布1万条猪流感信息，这种传播性对于中国境内的网站可以说是致命的。。
Mar 06
Twitter Trend
Posted by eDWARD at 20:46
Twitter的趋势搜索功能是不是说明它已具备了足够的时时信息来源？当某一热点事件发生时，大众关心别人对此热点的态度是否强烈？
Mar 06
Ever tried. Ever failed. No matter. Try again. Fail again. Fail better.
Posted by eDWARD at 20:40
Worstward Ho (1983)
