WHOIS Domain Lookup Tool in Python

Key Takeaways

what is going on guys welcome back in this little video today we're going to learn how to build a simple who is tool in Python so let us get right into it [Music] all right so let us get started with the very Basics first a who is query is essentially used to figure out who owns an IP address or who owns a domain so if you see a website you want to know who is behind that website you can just send a simple who is Quarry for the domain or 40 IP address to get some information about the owner and maybe you want to do this on a large scale maybe you have multiple domains multiple IP addresses that you want to gather information from and you want to do some data analysis or maybe you just want to do this on a regular basis frequently so it makes sense to automate the process and this is what we're going to learn how to do in this video we're going to learn how to automate who is we're going to build a simple who is Bond so just a script that gathers information about domains and IP addresses and for that we're going to open up the command line first and we're going to say pip install the package python Dash who is like this and once it's installed we're going to import just who is so we don't import python who is we import who is and in order to now get information about a domain or IP address all we need to do uh is we need to say rest equals response equals who is dot who is and then for example spotify.com then of course we also want to print the result and when I now run this you can see that we get a dictionary object with some information here so for example the domain name itself where the domain was registered uh the updated dates the creation date the expiration date um some name servers some stuff that you might be interested in I think you also get in some cases in this case not the city the address you can also see the organization and of course you can use that object to print individual uh Fields so you can say for example give me everything or you can say give me the organization give me the creation date creation underscore date and you will get the individual values here as well so this is one thing that you can do you can just get a domain name and you can get the individual fields and maybe you can gather them for multiple domains so what you could do in a data science context is you could have something like a sites list you can say okay I'm interested in uh I don't know some dates prediction or some some mean of the expiration date or I don't know what you want to do you want to get some information from multiple domains like facebook.com spotify.com instagram.com meta.com something like that you have many many many domains here let's say a thousand and you want to do something with them so you want to say for example I want to know all the companies Behind These websites so I can say companies equals and I can use a list comprehension to say who is dot who is of the site and from that I want to get the organization 4S in science so a use case could be I have a thousand uh or the Thousand most popular domains and I want to know um which companies own those domains and maybe a company occurs twice or three times so I would do that and then I would just print the companies like this see Meta platforms meta platforms already occur twice then we have Spotify Instagram um you can see that we get easily the organization of course I can do the same thing with the creation data and everything so I can say creation day to maybe figure out which one is the oldest right so I can say creation dates um so I can first of all just print that but then we can use that of course to filter some data so for example um there you go you can see here a daytime object what I can now do is I can say for example I want to have the first the first website here so the website that was created or the domain that was created uh the earliest so I can say print sites uh which sides the site that has the index or the index of the site um where the creation date is the smallest so I get the minimal uh the minimum creation date I get the index where it occurs in the creation dates list and I get the same index for the sites and then I can see which of those websites is the oldest in this case it's meta.com now doesn't mean necessarily that Facebook owns meta.com for that long it just means that the domain exists for that long so this is a different a difference here and one thing that you might also want to do I'm just showing you some use cases here because this video is quite beginner friendly we're just going here through some very very basic stuff but one thing that you might want to do here is also you might want to gather contact information so um maybe you want to find emails of certain websites uh of certain management teams or of certain support mails or something and maybe we have a website like whatsapp.com here as well I may want to do something like emails is equal to who is done who is s dot emails which is a list so not just one email 4S in science and then we can print emails and not every company has a lot of emails listed so for example um I mean actually those are just domain specific as far as I understand so you can't really get uh maybe I was wrong about this you can't really get support emails here most of the time I think you have some control over the emails that you put there so maybe you can actually also have a contact mail there but usually those are for abuse and for domain specific questions but you can still gather emails for for certain use cases uh with that approach now one thing I want to show you here is first of all that we can do that on IP addresses and second of all that not always do you get information about the real owner of the website so if I print for example who is dot who is and then I enter the IP address 81.19159.28 and let's just remove all of this here if I just print that you can see some information here but you can also see that uh you don't really understand who owns that so you can see okay the domain name is worldforyou.com and you can see that word for you owns that website but this is actually the IP address of uh neural nine so this is actually my IP address and you don't really see my information here so you can see okay it's Austria but you don't really see anything about me so you wouldn't see that the owner is me or you also don't see that the owner is neural nine my company so you just see that world for you is hosting that um which is also nice to know that you don't actually always get 100 the owner but maybe just the hosting provider so that's it for today's video I hope you enjoyed it and hope you learned something if so let me know by hitting the like button and leaving a comment in the comment section down below and of course don't forget to subscribe to this Channel and hit the notification Bell to not miss a single future video for free other than that thank you much for watching see you next video and bye foreign foreign [Music]