One of my Orkut friend Niharika Arora asked me on Orkut how to check if a person is online on yahoo messenger? I googled for sometime and here are my tested results…
First let me tell you coolest thing about hacks in this tutorial. They do not require targeted yahoo user to be on your friend list! Now..
To Check Online Status:
This will work only if user is online and NOT into invisible mode. Invisible part is covered later… 
First Official Way: Go to Yahoos profile directory and check target user profile. Say you want to check status of someone (where someone is Yahoo ID). Now suffix someone to URL http://profiles.yahoo.com/ so it will become http://profiles.yahoo.com/someone. Open final URL in browser and the profile will have status indicator!
Another Way: There are many simple sites which takes Yahoo ID and returns status of Yahoo user. I have tested http://www.blockstatus.com/yahoo/status-checker successfully!
This part is not a hack but official Yahoo feature documented here.
If you want PHP code to create a status-checker page of your own, this page may help you.
To Check Invisible Status:
I tested and used a third-party program named Buddy-Spy! Unlike above this requires a Yahoo account. I strongly discourage using your own Yahoo ID. You better create a new one!
Following is a screenshot of my test result, which says everything.
Also point to note is that I was not in friend-list of Yahoo account used for testing! 
Buddy-Spy Links: Download | Homepage | User Guide
Update: Try http://yahoostatus.ro/. Its tested, working fine and web-based! (Added October 7, 2008)
Related: How to go Invisible on Gmail Chat!
hey, I know of another simple trick to know if your friends are online…Open a window for a chat with them, then load the Doodle IMVironment…It will not load until your friend has your chat window open…send an IM like “hi” or something like that…This will open a chat window on their computer if they are online and the IMVironment will load completely…If it doesn’t, then it means that they really are offline…If u are on the recieving end of this trick, just disable your
IMVironments…
@Wulf
Is this works with new Yahoo messenger?
Actually I tried it on version 8 and above but got no results!
Probably we can just BUZZ everybody in the group by using send to all. We might get answer from some of them.hehe
@soleh
Ya.. That cud be a solution too!
I don’t know how it works in the new versions, all my friends have disabled IMVs…
@Wulf
I guess it stopped working from version 7.
Cause all posts/articles mentioning IMVs hack are quite old now.
By the way some day this will also get outdated… so lets stick too wats working today!
Anyway thanks for useful comments…
hey rahul…ths is really vry long time whn i last surf net.n ure’s site..its nice 2 c a complete change of luks of the site…watevr…ths is really a vry gud thg i learned from ths page..a new way to know if someone is oofline or online….thrs one mre site i know 2 search the same…”www.xeeber.com”u can evn add it 2 ure site…n i dnt knoe if u hav already put ths here ..bt if not i want 2 let our frns know…”HOW TO LOGIN MULTIPLE USERS IN YAHOO” VIA U.
U CAN ADD IT IF U WANT
WELLL TO STRT WIT…
1.GO TO RUN IN STRT MENU
2.TYPE “REGEDIT” THERE..PRESS OK
3.A PAGE CALLED REGISTRY EDITOR WILL OPEN
4.THN AT LEFT SIDE…U WILL FIND “MY COMPUTER ICON”IN WHICH THR R SEVERAL SUB FOLDER…
5.CHOOSE HKEY_CURRENT_USER
6.THR AGAIN U WILL FIN MANY SUBFOLDER’S…
7.CHOOSE ONE NAMED “SOFTWARE”
8.IN SOFTWARE THR U WILL FIND A YAHOO FOLDER
9.IN YAHOO FOLDER…GO TO “PAGER”
10.IN PAGER>TEST
11.CLICK ON TEST..THN AT RIGHT SIDE..ON RIGHT CLICKING…IN NEW..CHOOSE DWORD VALUE…
12.A NEW ICON GET CREATED…RENAME IT “PLURAL”
13.NOW..RIGHT CLICK ON PLURAL..THN CLICK ON “MODIFY” AND JST CHANGE THE VALUE TO “1″
14.YOU ARE DONE…NOW YOU CAN OPEN AS MANY MESSENGERS AS U WANT…N LOGIN WIT DIFFENRENT NAMES….
THXX…ANKIT AGARWAL
I CAN SHRE SUM GUD TECH OF HACKING,,IF U WANT URE USERS 2 BE SO…HEHE…..DO RTE ME BAK…
hey this buddy spy thing is nice….but is there any way to know people who r invisible on G MAIL CHAT OR ON GTALK???? pls tell me ! thanks in advance ! i got information on some pidgin or so…it claims (i havent yet tried) that it will tell me that who have deleted me from their friends list…. its 10mb huge file so any other way ???? pls tell ! thanks in advance !
@adi
Gmail Chat invisible feature is quite new…
So I guess it will take time before someone discover a hack for it.
Of course, if I happen to find something I will post it here!
You may subscribe to my RSS feed or email alert to receive automatic updates in future!
thanks rahul for replying me
and thanks to ur e mail alerts option 
i subscribed it and came here as soon as i got alerted 
very usefull facility :)thanks to U! THAKS TO TECHNOLOGY!….
i will keep visiting this page then 
uuuuuuhhhhhhh now off to see recent entry of netmeter 
so….
mmmmm ok ….i understand that gmail invisible thingy is quiet new ….i also searched alot for the hack i want…. want to know who is UNDER THE CLOAK ! lol …ok i than u in advance for saying “Of course, if I happen to find something I will post it here! ”
bye take very good care !
@adi
Thanks for your appreciation buddy!
Now a small correction, by “…I will post it here…” I meant I will post new hack on this blog.
So instead of keep visiting this page,
you can subscribe to RSS feed or email alert to receive automatic in future!
If you choose to go for email alert, you will receive whatever all future posts right into your inbox!
u not poting new hack here?? not here ?? … mmmmm ok so i am going to bookmark ur whole site
lol so i will come and visit ur workshop and keep track when that required hack will be out 
and i hope as soon as it comes out somewhere in internet,, it wont take much time to reach to this workshop site lol …. so… now off to book mark whole homepage of this site 
here i go to home page and here i press ctrl+D 
lol
uffffff i must search wikipedia for it…. RSS i know is just one …political…erm…social party in india :P…. ok ok i am going to learn about this “FEED” THINGY at my OWN ,, I dont want spoon “FEED” this time 
bytheway,, i am ashamed to tell that i know nothing about this feed thing neither about digg nor delicious
@Adi
Hey its k buddy!
Simplest you can do is put your email id in email alert form and click submit.
You will get a confirmation email from feedburner service. You have to open it and follow confirmation link .
Once you done with that anything I post here will be sent to your email address automatically…
i installed the spyware thing. i have 1 query…well i created another yahoo address.i checked the status for my ‘real’ address by signing into yahoo. lets say my email ad. is like sammy@yahoo.com. what if there are different addresses such as sammy@yahoo.co.in or sammy@yahoo.co.uk
how do u know which address you’re checking for…i had this problem as i was trying to check the status of a @yahoo.co.in address…
@jashen
I got your point!
But when say first sam creates an account - sam@yahoo.co.in, other sam(s) won’t be able to create - sam@yahoo.com or sam@yahoo.co.uk or anything in another country level domain.
There is a one click way to do this with a tiny javascript snippet saved as a bookmark in your toolbar (a bookmarklet)
copy this code, save it as a bookmark
javascript:void(q=prompt(’Enter Yahoo! user ID’,”));if(q)void(location=’ http://opi.yahoo.com/online?u=‘+q+’&m=g&t=2′+escape(q))
click on it in your toolbar, you will be prompted for the username…..
Jack
Will surely try this!
but instead we can use thse sitez na
http://www.xeeber.com
http://www.invisible.ir
[:)]
@tinku
Thanks I will try them.
Actually I tried xeeber at the time of writing this article but it was giving error, so did not mention about it.
I will test again both now..
Update:Both are not working! Giving “Server is busy” error message.
http://lolemxixon.com/yahoo you can check invisible there.
xeeber and invisible.ir dont work anymore
this one is better at finding meebo users
http://invisible-scanner.com/
hi friends
may i find how i know of my friends online on orkut
@sushant
There is no formal way but generally friends shown in profile or homepage sidebar are sorted accoriding to their online status.
Order is - Most recently online friend shown first!
So you can count on it somewhat…
@Neo
Thanks Neo.
Link given by you really works…
@Tim
Thanks to u 2 buddy!
http://lolemxixon.com/yahoo also works…
But I guess their server is having downtime issues…
they work for me seriously
buddy spy works well for me.
What I want to know is how to tell when an ID was first registered or what the person ‘join’date was.
@tinku
Yep… Thanks for positive feedback…
@Ollie
I guess finding joining date will be hard. It may not be available publicly…
i have a wild method to guess joining date lol its not accurate but just for fun u can try this…. applicable for yahoo only… see,, normally atleast a non techie person doesnt update his or her profile in yahoo account… so when we see yahoo profile it says last modified or last updated and i consider that date is the joining date itself … just a wild guess…
i download buddy spy2.2.19, i can not use bot to log in yahoo sever, someone can help me? thank you.
Hi Rahul! How about checking the invisible in MSN messenger?
@adi
Hey buddy sorry for late reply as I was offline on a long vacation…
Yeah, I agree with you as most yahoo profiles never updated. May be yahoo users are more interested in their profiles at social networking sites like facebook, orkut, etc…
@tester
First sorry for late reply as I was offline on a long vacation.
Now about your problem… You may use your yahoo account to login or create a fake one!
Rest you can use some online status checker as mentioned above…:-)
@Dunn
I have 2-3 options for MSN messenger in testing. Will post about them if anyone of them work!
That audible one worked i just tried it and it worked
@Drebowlegs
What audible r u talking about???
@prasoon
Glad to now that you like it sooooooooooooooooo much
Hi Guys ,
Please help me , when i scan on a yahoo id in buddy spy , it doesn’t show anything for the online status (the column remains blank) . why is it happening so ?
Thanks
@desertRose
May be there was some problem when you tried it…
Why don’t you check again using another yahoo account?
Let me know if it works…
please tel me wat shud i select in YMSG server,CAm server. YMSG port, WEB server..:( i want to use this software really very urgently on my buddies…
@sadique
Better try following online tools…
http://lolemxixon.com/yahoo
http://invisible-scanner.com/
If you still get some problem, let me know…
uhmm hi everyone… just wanna share..
if you want to check if your friend is appearing incvisible.. http://www.persiangap.com
http://www.myspytool.com ( if you want to check the online activity of your friend for the last 24 hours)
@miapx
Thanks for info.. :-)Will check and let you know…
Check a Yahoo ID if is offline or invisible using Detect Invisible .com. You can download someone else avatar too.
thank you for creating this
@Check Yahoo Id
Thanks for sharing…
@fahd
I haven’t created this checkers.
I just posted them here.
is there anyway to see if that person is idle or not while there not on your list ??
is it possible to c when some one online last time in yahoo messenger?if u know plz write it down.thanxx
@luckyhoe
Not sure. Check above tools. You may find a useful one.
@khan
No I guess.
Such information must be there maintained by Yahoo but it may not be accessible to outside world.
TRY Yahoo Tracker best result with lil time hope to get ya best result with it
@isha
Thanks but I guess all these tools use Yahoo tracker behind the scene!
well … if tried everything, cause i think a friend of mine is hidding from me, so i tried a few sites.
http://detectinvisible.com/
http://www.invisible.ir/
http://www.myspytool.com/members.php
but all sites gave all different messages … one said offline and the other said online … so it’s confussing. best thing is (i think) to ask the person, hope she tells the truth, altough the doodle thing was right. it stayed so i think she was realy off-line .. hmm
With http://www.4invisible.com/ You Can Find an Invisible User on Yahoo! Messenger.
%100 TRUE RESPONSE!
Test it and say your opinion.
http://www.4invisible.com/
@Andrews
Have you tried services listed in comments?
Personally you can go invisible and check which service is showing your yahoo ID online. You can count on them…
@Aydin
Thanks
http://www.yahoostatus.ro , works 100 % perfect
yahoo programs , avatars , statuses
check who is invisible on yahoo !
http://www.yahoostatus.ro
is there a way to check
1. if the perticular user is using the webcam and to whom? in buddyspy it only shows whether the webcam is on/off.
2. to which ids the user is chatting to?
thankssss
@SunKist
I don’t think that is possible.
hi
is there any way to get notified if a person comes online in yahoo messenger without adding the person.
I know about the online status checkers but its not efficient as we have to keep on checking over and over again
@venus
Sorry. I dont know one…
Hi i was wondering if you could help me.
See my boyfriend has many id’s on yahoo
he knows i know but how can i find if he has made more id’s under some other name i need HELP PLEASE thanks
@mar -
Sorry mar… I guess such things will be hard to track…
@mar -
Use key loggers on your boy friend’s computer
hiii nybody can tell me how can i remain invisible as people r using sites to know dat i m online(invisible) or not????thanx
@www.yahoostatus.ro -
thz iz awsoomm..
@ridz -
Thank ‘Q’
http://younup.com
100% correct! Tested!
thanks
Also a good website http://www.yahoostatus.org works perfect
Gorgious effort u ppl doing, labb ya
@Umair -
Thanks!!
Your encouragements appreciated
@harman -
I came across it, long time back…
Hi Harman, there is a setting in yahoo which if used can hide your status from all such scripts.
I tried searching for it but could not find it.
even this site can http://yahootracer.com
to Rahul
thanx buddy bt frm where i can get dat script?
Gud and educative post
is der a way how to know how many ppl my friends chatting with?
@mika -
No
Hey can you tell me way to get same thing for gmail users??
Its here.
I just realized that Gyachi shows you automatically who’s stealthed. But I think it’s for Linux users only unfortunately.
Thanks a lot Deepak.
@Jeetu
There is a bug in Google Talk which can be used for this purpose.
@ Jeetu
You are welcome buddy
hey one of my friends got this software
were he can see who is online or invisible
even how many people they talking too
anyone know about it?
i try buddy spy … the person already online but it stil say he was offline
@ mikaelayifu
hey u talking about gtalk or yahoo for new software??
and btw buddy spy works fine with me..
hi jeetu
im talking about in yahoo … i dnt know if it a new software or
maybe just hack … but i keep trying to look for it
but der no stuff like what he have
Ok buddy
Hello Friends
here two cool sites to check status of Yahoo! User
http://www.persiangap.com
http://detectinvisible.com
i am using it and its working perfect…
Thnx
Bhavin Patel
Sydney
@rahul
hi .. i try most of the link post here
can u give me the best one u ever like?
uuhh… simplest would be…
http://www.persiangap.com
^_^
ohh sweet … about abt in msn?
@ goddes liyah
i did try that .. it say invisible but he was online
@mikaelayifu
I don’t know about it but why don’t you ask your friend about it?
If he reveals his secret, then share with us too…
@ mikaelayifu
maybe he was invisible to everyone but you ^_^
his not invisible to other … i ned to find this out lolz
maybe he was invisible to most people you dont know.. lol!
nah… uhh.. but maybe again you just have to figure out why..
I got buddy spy at my office and at home but the program at my office doesn’t show if the person is using the webcam or not, but my home computer does. Is that because of the firewalls? Is there a different configuration that I need to set up? Thank you.
@Sunny
I am not sure about firewalls but if you put proxy settings in browser to access Internet, buddyspy may not work.
dudes the checking incisible stuff is available in the internet…..!!!!!!!but i need a way for escaping from the checks against me wether im invisibleee…can anyone help meeee…huh????
check this site
http://spy-yahoo.com
…
..
.
@Satish
I guess there is a setting in Yahoo which assures your privacy.
I am not able to remember it but I find it again somewhere I will surely post it on DW.
hi rahul.. is it possible to check the last log in date in ym?
Now I can catch those offline friends easily. Thanks
I use Yahoo Invisible which is not very popular, but it’s stable and never busy. I’m happy with it.
You can try this site http://yahooinvisiblecheck.com/
cool post thanks for that. It’s really east way to find if some is invisible.
The other websites use the Yahoo servers.. they have a link to yahoo and when the feed the yahoo id in the link and navigate to tht link (thru php), a number is echoed and its diff when the user is offline, online or invisible. And the site echoes the user status.
@ Bloggers : Now there are scripts available to install on your site which will catch offline messenger contacts. If you want one, google it.
hey does anyone know if someone is “idle” if their status when looked up will list them as invisible?? cuz my friends status on IM has said idle for the last two hours but when i checked on neostatus.com to see if he was invisible or not it said he was. how can this be if he’s clearly “idle”??? plz help this is so important thanks!
2nd question: i can see my friend online but when i check on neostatus it shows him “invisible” he only has me on his friend list and nobody else (i know his password) so why would it be doing this? is he purposely putting invisible on for everybody else that might just know his user id so nobody will bother him but me? of course i have tried to message him and he won’t answer, he hasn’t gone “idle” yet either hmmmmmmmmmm what’s the deal i wonder???? or is he in a chat room as invisible so i won’t find him there? can u still IM in a chat room if your invisible? he now has it on his yahoo mail that when he signs on his email he automatically logs into IM does this cause any quirks that you know of? sorry for all the questions but there are some unspoken issues right now that i need to get to the bottom of. thank you in advance
a very good invisible scanner is http://www.narubian.com never busy
@mustangsally
These tools used to check invisible status don’t work accurately all the time. So try few of them and see on what status most of the agree!
About 2nd question…
Yes it is possible. On yahoo one can control visibility settings on per user and/or per group basis.
So it may happen you and neostatus see different status.
how can u know if the person in msn is invisible?
@Mika
Try this http://www.blockstatus.com/msn/stchecker
someone told me thers a way to detect invisible users using regedit…iwould like 2 know..
is there a way to know the real location of a person whom you’re chatting with? if there is, how can you do it? thanks.
I personally use http://www.detectinvisible.me, and I found it excellent.
Gorgeous interface, fast.
They even have a desktop application for yahoo status checking named Detect Invisible.Me.
Hi all - the best of the best is http://www.ydetective.com - it has something amazing - use can add yahoo id’s and it will monitor for you all the activity of those users. Super, now i can see what my girlfriend is doing online without having to check manually.
Bye.
@ georgeH ..
i wonder why it not working for me .. it say pending
even the person is already online
Dear , how can i know what my freinds talking about me while we chat.. i need a software.. so pls . help me out.
how to knw when does yahoo user has login last time
@esha
try http://www.ydetective.com
hi
would u plz tell me how i know my friends last login?
invissible detector cannot work properly,,even the person is offline its indicate that he or she invissible!