viewup

Custom 404 allow you to customize the 404 page style and content. 
It allows you to style your current theme 404 page or create a new one.
You can insert Widgets, Styles and Content. Custom 404 has minimal HTML. 
Everything is done with live preview.
You can customize an 404 page for each of your themes, simply as customize your theme.

Custom 404

Pippin Williamson

Modifies the Empty Spam action in WordPress to process the spam deletion in batches, allowing you to delete thousands or even hundreds of thousands of spam comments at once without killing your server.
Have you found a bug or have a suggestion or improvement you’d like to submit? This plugin is available on <a href="https://github.com/pippinsplugins/batch-comment-spam-deletion" rel="nofollow ugc">Github</a> and pull requests are welcome!

Batch Comment Spam Deletion

Modifies the Empty Spam action in WordPress to process the spam deletion in batches instead of all at once.

Custom 404 vs Batch Comment Spam Deletion