Why do some pages seem not to be indexed? The link is still present in the siteidx?.url file!

If the URL that should be indexed but is not, is present in the siteidx?.url file, this means that a page pointing to it has been found, but that the URL did not match the index criteria. This can be the Depth or the MaxFiles options.

A common error comes from the robots.txt file on the web server that excludes a directory from indexing. Check out it's contents in order to find out whether this is the problem. If yes, you can always ignore the robots directives by adding Robots=N option to the asearch.cnf file.

Note that Alkaline 1.3 uses a new .urt structure for urls and it gets much more difficult to find out if an url is indexed or not. There's a way to find out why a particular url has been excluded, run Alkaline with the -exv command-line option.