Can’t completely uninstall

I have uninstalled the AddThis plugin and deleted the folder, but addthis is still showing up in my DNS lookups in GTMetrix:

wingofmadness.com: 1 component, 0.02K (0.02K GZip)
https://www.wingofmadness.com: 9 components, 153.5K (44.0K GZip)
https://www.googletagmanager.com: 1 component, 54.5K (18.7K GZip)
fonts.googleapis.com: 1 component, 9.3K (0.7K GZip)
wom-uhs6yjn5f5zo.netdna-ssl.com: 22 components, 442.4K (129.0K GZip)
i.creativecommons.org: 1 component, 0.0K
s7.addthis.com: 3 components, 697.2K (213.4K GZip)
s0.wp.com: 1 component, 10.4K (3.1K GZip)
stats.wp.com: 1 component, 3.8K (1.4K GZip)
https://www.google-analytics.com: 1 component, 36.0K (14.6K GZip)
m.addthis.com: 1 component, 0.1K (0.1K GZip)
licensebuttons.net: 1 component, 1.7K
pixel.wp.com: 1 component, 0.05K
graph.facebook.com: 10 components, 2.4K (1.9K GZip)
api-public.addthis.com: 10 components, 0.3K (0.5K GZip)

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