I created the below page in php for 503 errors and plan to use this when there is an internal server error due to uploading a new perl file, etc.
My questions are:
1. Is this page correct? Should I use: Service Temporarily Unavailable or just Service Unavailable?
2. Will this instruct googlebot and other robots to come back in 1 hour and crawl the page again?
3. Will googlebot and other robots still keep the old cached copy of the page if they get a similar 503 error?
<?
header("HTTP/1.1 503 Service Temporarily Unavailable\r\n");
header("Retry-After: 3600\r\n");
?>
<HTML>
<HEAD>
<TITLE>503 Service Temporarily Unavailable</TITLE>
</HEAD>
<BODY>
<H2>503 Service Temporarily Unavailable. Please retry later.</H2>
</BODY>
</HTML>
