The hosts file entries to block Spotify ad servers

spotify-hosts.txt

# Use this to block Spotify ad servers
# sources:
# https://www.reddit.com/r/Piracy/comments/4kn6rq/comprehensive_guide_to_blocking_ads_on_spotify/
# https://gist.github.com/teomaragakis/cb187d880c9a3ca2c8a2
# https://gist.github.com/Shujito/b7a8f8f971b22f49b4313d7d3e8e6931
# https://gist.github.com/rifkyekayama/f7c43e470f23878b20416e68f73829dc
# https://gist.github.com/shokoylele/8f4160a102480471cb946fbd800bc86a
############## Begin manual list

# 127.0.0.1 spclient.wg.spotify.com # might block the entire Spotify app from working too
127.0.0.1 media-match.com
127.0.0.1 adclick.g.doublecklick.net
127.0.0.1 www.googleadservices.com
# 127.0.0.1 open.spotify.com
127.0.0.1 pagead2.googlesyndication.com
127.0.0.1 desktop.spotify.com
127.0.0.1 googleads.g.doubleclick.net
127.0.0.1 pubads.g.doubleclick.net
127.0.0.1 audio2.spotify.com
127.0.0.1 www.omaze.com
127.0.0.1 omaze.com
127.0.0.1 bounceexchange.com
127.0.0.1 http://www.googleadservices.com
127.0.0.1 pagead46.l.doubleclick.net
127.0.0.1 pagead.l.doubleclick.net
127.0.0.1 video-ad-stats.googlesyndication.com
127.0.0.1 pagead-googlehosted.l.google.com
127.0.0.1 partnerad.l.doubleclick.net
127.0.0.1 prod.spotify.map.fastlylb.net
127.0.0.1 adserver.adtechus.com
127.0.0.1 na.gmtdmp.com
127.0.0.1 anycast.pixel.adsafeprotected.com
127.0.0.1 d361oi6ppvq2ym.cloudfront.net
127.0.0.1 gads.pubmatic.com
127.0.0.1 idsync-ext.rlcdn.com
127.0.0.1 ads-west-colo.adsymptotic.com
127.0.0.1 geo3.ggpht.com
127.0.0.1 showads33000.pubmatic.com
127.0.0.1 securepubads.g.doubleclick.net
127.0.0.1 http://audio2.spotify.com
127.0.0.1 www.audio2.spotify.com
127.0.0.1 core.insightexpressai.com
127.0.0.1 content.bitsontherun.com
127.0.0.1 s0.2mdn.net
127.0.0.1 v.jwpcdn.com
127.0.0.1 d2gi7ultltnc2u.cloudfront.net
127.0.0.1 crashdump.spotify.com
127.0.0.1 adeventtracker.spotify.com
127.0.0.1 log.spotify.com
127.0.0.1 analytics.spotify.com
127.0.0.1 ads-fa.spotify.com
127.0.0.1 cs283.wpc.teliasoneracdn.net
127.0.0.1 audio-ec.spotify.com
127.0.0.1 cs126.wpc.teliasoneracdn.net
127.0.0.1 heads-ec.spotify.com
127.0.0.1 u.scdn.co
127.0.0.1 cs126.wpc.edgecastcdn.net
127.0.0.1 ads.pubmatic.com  
127.0.0.1 www.googletagservices.com
127.0.0.1 sto3.spotify.com
127.0.0.1 b.scorecardresearch.com
127.0.0.1 bs.serving-sys.com
127.0.0.1 d3rt1990lpmkn.cloudfront.net
127.0.0.1 doubleclick.net
127.0.0.1 ds.serving-sys.com
127.0.0.1 googleadservices.com
127.0.0.1 gtssl2-ocsp.geotrust.com
127.0.0.1 js.moatads.com
127.0.0.1 partner.googleadservices.com
127.0.0.1 tpc.googlesyndication.com
127.0.0.1 weblb-wg.gslb.spotify.com
127.0.0.0 www.omaze.com
127.0.0.1 audio-sp-tyo.spotify.com
127.0.0.1 audio-sp-ash.spotify.com
127.0.0.1 audio-fa.spotify.com
127.0.0.1 audio-sp.spotify.com
127.0.0.1 heads-fab.spotify.com
127.0.0.1 ads.yahoo.com
127.0.0.1 agkn.com
127.0.0.1 rlcdn.com
127.0.0.1 adnxs.com
127.0.0.1 fastclick.net
127.0.0.1 pubmatic.com
127.0.0.1 googlesyndication.com
127.0.0.1 googletagservices.com
127.0.0.1 cloudfront.net
127.0.0.1 ravenjs.com
127.0.0.1 gvt1.com
0.0.0.0 pubads.g.doubleclick.net
0.0.0.0 securepubads.g.doubleclick.net

############## End manual list

@anthony-wang redirector.gvt1.com is used by e.g. Firefox to update some of its components (specifically, the widevine-cdm plugin to enable playback of DRM-content). I suggest removing this entry.

Updated, thanks @p1r473 @larswijn !

@anthony-wang 127.0.0.1 open.spotify.com blocks the entire web version of spotify! For me it works fine without it in the list.

Thanks, @ohusq !