Why is the Webhook Returning Status Code 204?

Retreaver blocks a number of domains from being accessed by its bot. These domains are blocked for security reasons or because they are widely used as CDNs, and we don't want to overwhelm them with traffic. We suggest using an alternate domain, or trying one of our built-in integrations to interact with popular services.

In addition to the domains below, all Retreaver-owned domains are blocked. Attempts to access these domains will result in a 204 NO CONTENT response.

ytimg.com
trustedform.com
facebook.com
facebook.de
facebook.fr
facebook.net
facebookofsex.com
fb.com
fbcdn.net
friendfeed.com
2mdn.net
admeld.com
admob.com
cc-dt.com
destinationurl.com
doubleclick.net
gmail.com
google.com
googleadservices.com
googlemail.com
googlesyndication.com
googletagservices.com
invitemedia.com
orkut.com
postrank.com
smtad.net
teracent.com
teracent.net
ytsa.net
backtype.com
crashlytics.com
tweetdeck.com
twimg.com
twitter.com
twitter.jp
63squares.com
i-stats.com
acxiom.com
mm7.net
3dstats.com
addfreestats.com
amadesa.com
alexa.com
alexametrics.com
anormal-media.de
anormal-tracker.de
atinternet.com
xiti.com
attracta.com
polldaddy.com
awio.com
w3counter.com
w3roi.com
belstat.be
belstat.com
belstat.de
belstat.fr
belstat.nl
blogcounter.de
bluemetrix.com
bmmetrix.com
branica.com
brightedge.com
bubblestat.com
attributionmodel.com
c3metrics.com
c3tag.com
chartbeat.com
chartbeat.net
clickdensity.com
clicktale.com
clicktale.net
pantherssl.com
clixmetrix.com
clixpy.com
clustrmaps.com
cnzz.com
axf8.net
compuware.com
gomez.com
certifica.com
comscore.com
scorecardresearch.com
sitestat.com
voicefive.com
connexity.com
convert.com
reedge.com
convertro.com
cetrk.com
crazyegg.com
crowdscience.com
collserve.com
dataium.com
demandbase.com
dwstat.cn
eloqua.com
encoremetrics.com
sitecompass.com
eproof.com
etracker.com
etracker.de
sedotracker.com
sedotracker.de
eulerian.com
eulerian.net
extreme-dm.com
extremetracking.com
feedjit.com
footprintlive.com
freeonlineusers.com
free-pagerank.com
daphnecm.com
gfk.com
gfkdaphne.com
gaug.es
godaddy.com
trafficfacts.com
gosquared.com
gostats.com
gtop.ro
gtopstats.com
raasnet.com
redaril.com
histats.com
hitsniffer.com
hitslink.com
cmcore.com
coremetrics.com
ibm.com
enquisite.com
inboundwriter.com
infonline.de
ivwbox.de
hotlog.ru
infostars.ru
inspectlet.com
domodomain.com
intelligencefocus.com
intercom.io
iperceptions.com
keymetric.net
kissmetrics.com
linezing.com
liveperson.com
nuconomy.com
logdy.com
crwdcntrl.net
lotame.com
lynchpin.com
lypn.com
clicktracks.com
lyris.com
lytiks.com
marktest.com
marktest.pt
maxymiser.com
estat.com
mediametrie-estat.com
meetrics.de
meetrics.net
research.de.com
crm-metrix.com
customerconversio.com
metrixlab.com
mixpanel.com
mongoosemetrics.com
monitus.net
motigo.com
nedstatbasic.net
mouseflow.com
mypagerank.net
hitsprocessor.com
netapplications.com
newrelic.com
apnewsregistry.com
nextstat.com
glanceguide.com
nielsen.com
nurago.com
nurago.de
sensic.net
observerapp.com
onestat.com
openstat.ru
spylog.com
opentracker.net
oewa.at
oewabox.at
persianstat.com
phonalytics.com
phpmyvisites.us
pronunciator.com
visitorville.com
kissinsights.com
qualaroo.com
thecounter.com
quintelligence.com
radarurl.com
researchnow.com
valuedopinions.co.uk
getclicky.com
roxr.net
staticstuff.net
dl-rms.com
dlqm.net
questionmarket.com
safecount.net
sageanalyst.net
sagemetrics.com
segment.io
seevolution.com
svlu.net
shinystat.com
snoobi.com
statcounter.com
statisfy.net
statsit.com
stratigent.com
4u.pl
tensquare.com
heronpartners.com.au
marinsm.com
sesamestats.com
statistik-gallup.net
tns-counter.ru
tns-cs.net
tnsglobal.com
roia.biz
trackingsoft.com
umbel.com
nakanohito.jp
vertster.com
sa-as.com
visistat.com
visitstreamer.com
vistrac.com
vizisense.com
vizisense.net
onlinewebstats.com
web-stat.com
webtrackingservices.com
webtraxs.com
webclicktracker.com
webtrekk.com
webtrekk.net
reinvigorate.net
webtrends.com
webtrendslive.com
amung.us
woopra-ns.com
woopra.com
wowanalytics.co.uk
compete.com
wysistat.com
analytics.yahoo.com
yellowtracker.com
tynt.com
activengage.com
adobe.com
typekit.com
typekit.net
abmr.net
akamai.com
edgesuite.net
akqa.com
srtk.net
amazon.com
amazonaws.com
cloudfront.net
5min.com
aim.com
aol.com
aolanswers.com
aolcdn.com
aoltechguru.com
autoblog.com
cambio.com
dailyfinance.com
editions.com
engadget.com
games.com
homesessive.com
huffingtonpost.com
joystiq.com
kitchendaily.com
makers.com
mandatory.com
mapquest.com
moviefone.com
noisecreep.com
patch.com
pawnation.com
shortcuts.com
shoutcast.com
spinner.com
stylelist.com
stylemepretty.com
surphace.com
techcrunch.com
theboombox.com
theboot.com
tuaw.com
userplane.com
winamp.com
automattic.com
gravatar.com
intensedebate.com
wordpress.com
wp.com
cookieq.com
baynote.com
baynote.net
bazaarvoice.com
bigdoor.com
onetruefan.com
brightcove.com
browser-update.org
btbuckets.com
bufferapp.com
bunchball.com
buysafe.com
buzzfed.com
buzzfeed.com
cbox.ws
cbsinteractive.com
com.com
cedexis.com
cedexis.net
certona.com
res-x.com
clipsyndicate.com
collarity.com
conduit-banners.com
conduit-services.com
conduit.com
wibiya.com
congoo.com
contactatonce.com
conviva.com
dailyme.com
newstogram.com
datasift.com
tweetmeme.com
disqus.com
aboutecho.com
haloscan.com
js-kit.com
akamaihd.net
flattr.com
freewheel.tv
fwmrm.net
getsatisfaction.com
gigcount.com
gigya.com
globaltakeoff.com
globaltakeoff.net
formalyzer.com
gogrid.com
komli.net
apture.com
blogger.com
feedburner.com
ggpht.com
gmodules.com
google-melange.com
google.ad
google.ae
google.com.af
google.com.ag
google.com.ai
google.al
google.am
google.co.ao
google.com.ar
google.as
google.at
google.com.au
google.az
google.ba
google.com.bd
google.be
google.bf
google.bg
google.com.bh
google.bi
google.bj
google.com.bn
google.com.bo
google.com.br
google.bs
google.bt
google.co.bw
google.by
google.com.bz
google.ca
google.cd
google.cf
google.cg
google.ch
google.ci
google.co.ck
google.cl
google.cm
google.cn
google.com.co
google.co.cr
google.com.cu
google.cv
google.com.cy
google.cz
google.de
google.dj
google.dk
google.dm
google.com.do
google.dz
google.com.ec
google.ee
google.com.eg
google.es
google.com.et
google.fi
google.com.fj
google.fm
google.fr
google.ga
google.ge
google.gg
google.com.gh
google.com.gi
google.gl
google.gm
google.gp
google.gr
google.com.gt
google.gy
google.com.hk
google.hn
google.hr
google.ht
google.hu
google.co.id
google.ie
google.co.il
google.im
google.co.in
google.iq
google.is
google.it
google.je
google.com.jm
google.jo
google.co.jp
google.co.ke
google.com.kh
google.ki
google.kg
google.co.kr
google.com.kw
google.kz
google.la
google.com.lb
google.li
google.lk
google.co.ls
google.lt
google.lu
google.lv
google.com.ly
google.co.ma
google.md
google.me
google.mg
google.mk
google.ml
google.com.mm
google.mn
google.ms
google.com.mt
google.mu
google.mv
google.mw
google.com.mx
google.com.my
google.co.mz
google.com.na
google.com.nf
google.com.ng
google.com.ni
google.ne
google.nl
google.no
google.com.np
google.nr
google.nu
google.co.nz
google.com.om
google.com.pa
google.com.pe
google.com.pg
google.com.ph
google.com.pk
google.pl
google.pn
google.com.pr
google.ps
google.pt
google.com.py
google.com.qa
google.ro
google.ru
google.rw
google.com.sa
google.com.sb
google.sc
google.se
google.com.sg
google.sh
google.si
google.sk
google.com.sl
google.sn
google.so
google.sm
google.st
google.com.sv
google.td
google.tg
google.co.th
google.com.tj
google.tk
google.tl
google.tm
google.tn
google.to
google.com.tr
google.tt
google.com.tw
google.co.tz
google.com.ua
google.co.ug
google.co.uk
google.com.uy
google.co.uz
google.com.vc
google.co.ve
google.vg
google.co.vi
google.com.vn
google.vu
google.ws
google.rs
google.co.za
google.co.zm
google.co.zw
google.cat
googleapis.com
googleartproject.com
googleusercontent.com
gstatic.com
panoramio.com
postini.com
recaptcha.net
youtube.com
gravity.com
grvcdn.com
heyzap.com
iesnare.com
iovation.com
kaltura.com
kikin.com
clickability.com
limelight.com
llnwd.net
fyre.co
livefyre.com
liveperson.net
liverail.com
longtailvideo.com
ltassrv.com
luminate.com
pixazza.com
markit.com
wsod.com
mashlogic.com
mcafee.com
scanalert.com
bing.com
gamesforwindows.com
getgamesmart.com
healthvault.com
ieaddons.com
iegallery.com
live.com
microsoft.com
microsoftalumni.com
microsoftalumni.org
microsoftstore.com
msn.com
msnbc.com
msndirect.com
nbcnews.com
office.com
officelive.com
outlook.com
s-msn.com
skype.com
windowsphone.com
worldwidetelescope.org
xbox.com
zune.com
zune.net
newsinc.com
blaze.com
oberon-media.com
olark.com
oo4.com
ooyala.com
optimizely.com
atgsvcs.com
instantservice.com
istrack.com
oracle.com
parsely.com
peerius.com
punchtab.com
rim.com
scoreloop.com
saymedia.com
typepad.com
videoegg.com
scribefire.com
sixapart.com
skribit.com
snapengage.com
springmetrics.com
superfish.com
synacor.com
thinglink.com
thummit.com
topsy.com
tracemyip.org
trackset.com
trovus.co.uk
trumba.com
tumblr.com
turn.com
turnto.com
turntonetworks.com
tweetboard.com
twittercounter.com
ubermedia.com
tweetup.com
ubertags.com
unbounce.com
uptrends.com
usabilitysciences.com
webiqonline.com
uservoice.com
verticalacuity.com
vgwort.de
qoof.com
viewbix.com
vimeo.com
vimeocdn.com
visualrevenue.com
voice2page.com
websitealive.com
websitealive0.com
websitealive1.com
websitealive2.com
websitealive3.com
websitealive4.com
websitealive5.com
websitealive6.com
websitealive7.com
websitealive8.com
websitealive9.com
visualwebsiteoptimizer.com
wingify.com
xtify.com
flickr.com
staticflickr.com
yahoo.com
yahooapis.com
yahoofs.com
yimg.com
ypolicyblog.com
yuilibrary.com
zenfs.com
zopim.com
addthis.com
addthiscdn.com
addthisedge.com
clearspring.com
connectedads.net
xgraph.com
xgraph.net
causes.com
digg.com
licdn.com
linkedin.com
addtoany.com
lockerz.com
list.ru
mail.ru
meebo.com
meebocdn.net
papayamobile.com
pinterest.com
reddit.com
sharethis.com
buzzster.com
shareaholic.com
stumble-upon.com
stumbleupon.com
userapi.com
vk.com
vkontakte.ru
mybloglog.com
rocketmail.com
ymail.com