This site now proudly uses a public-service 404 page.
A 404 page only appears when a user hits a wrong directory or a dead link, so it doesn’t affect the normal operation of the site. Putting a public-service ad slot on the 404 page helps missing children find their way home, and I’m proud of that.
The main providers of public-service 404 pages are Yiyun (public-interest internet) and Tencent Charity (Baobei Huijia).
Tencent Charity, wide version:
<script type="text/javascript" src="http://www.qq.com/404/search_children.js" charset="utf-8"></script>
Tencent Charity, narrow version:
<script type="text/javascript" src="http://www.qq.com/404/search_children.js?edition=small" charset="utf-8"></script>
Yiyun offers many sizes, which I won’t paste here — search for them.
Using it is simple: wrap the code in a div to control its position on the page.
Ren Fei also invites every webmaster to put a public-service ad slot on their own site’s 404 page, carrying the names and photos of missing children, to help them get home.