Maximilian Fink

With this plugin you can decorate your site for Halloween with just one click – an Easter Egg that will delight your visitors! 
There is an options page under settings where you can activate and throttle spiders and flies. These will appear on the page and crawl across the screen in a very real way. A spooky affair perfect for Halloween.

Simple Halloween Decoration For Your Page

I love this plugin! the plugin is perfect for halloween and and easy to use. just check the checkboxes on the options page and the site is ready for the halloween night! 100% free of charge and free of advertising - awesome!

I Love it!!!!

The plugin simply adds spiders and bugs that run across your site - the perfect halloween-decoration for your site!

bettoadami

A Multisite Network plugin that removes the automatic sitemap link (deprecated practice) and adds custom parameters/lines at the end of the default Robots.txt whenever called. It will enable small adjustments for each site on the network – like pointing again to specific sitemaps if needed – without sacrificing the default conventions coded to WordPress’ core. To make the adjustments, look for a text area at the end of General Settings Page.

Robots.txt Extender

Dynamic robots.txt for Multisite! Change parameters, or don't, for each site of your network without losing the defaults from WordPress Includes.

Simple Halloween Decoration For Your Page vs Robots.txt Extender