Here's a topic I almost never hear discussed - a website changelog. I've been getting clients who don't already do this to begin keeping a changelog for their site. Having a record of what you did (and when) has already proven invaluable in trouble shoooting many times. No more searching your memory (or [shudder] your team's memories) for dates and actions.
The degree of granularity is, somewhat, a matter to be tailored to each situation. But certain things seem to me to be essential. Here's what I recommend as a minimum. I'd like to hear other's thoughts and suggestions 数据挖掘研究院
Here's my current "must-log" list:
1. every change to robots.txt
2. every change to htaccess (or Internet Services Manager in IIS)
3. site-wide template changes (especially menu changes)
4. DNS and hosting changes
5. new outbound links
6. ad purchases and run-times
What else belongs there?
