domain-availability | A simple UI to check the availability of domains | REST library
kandi X-RAY | domain-availability Summary
kandi X-RAY | domain-availability Summary
A simple UI to check the availability of domains with Namecheap's API
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Top functions reviewed by kandi - BETA
- Checks for domain names
- Initialize the batch with the requested domains
- Updates the existing TLDs with the given config .
- Gets the client IP address .
- Update the stats
- Resets classes
- Computes the average
- Update the batch status
domain-availability Key Features
domain-availability Examples and Code Snippets
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Trending Discussions on domain-availability
QUESTION
I need a reliable way to check in Python if a domain of any TLD has been registered or is available. The bold phrases are the key points that I'm struggling with.
What I tried?- WHOIS is the obvious way to do the check and an existing Python library like the popular python-whois was my first try. The problem is that it doesn't seem to be able to retrieve information for some of the TLDs, e.g. .run, while it works mostly fine for older ones, e.g. .com.
- So if python-whois is not reliable, maybe just a wrapper for the Linux's whois would be better. I tried whois library and unfortunately it supports only a limited set of TLDs, apparently to make sure it can always parse the results.
As I don't really need to parse the results, I ripped the code out of the whois library and tried to do the query by calling Linux's whois myself:
...
ANSWER
Answered 2018-Jan-04 at 15:38If you do not have specific access (like being a registrar), and if you do not target a specific TLD (as some TLDs do have a specific public service called domain availability), the only tool that makes sense is to query whois servers.
You have then at least the following two problems:
- use the appropriate whois server based on the given domain name
- taking into account that whois servers are rate-limited so if you are bulk querying them without care you will first hit delays and then even risk your IP to be blacklisted, for some time.
For the second point the usual methods apply (handling delays on your side, using multiple endpoints, etc.)
For the first point, in another of my reply here: https://unix.stackexchange.com/a/407030/211833 you could find some explanations of what you observe depending on the wrapper around whois you use and some counter measures. See also my other reply here: https://webmasters.stackexchange.com/a/111639/75842 and specifically point 2.
Note that depending on your specific requirements and if you are able to at least change part of them, you may have other solutions. For example, for gTLDs, if you tolerate 24 hours delay, you may use the published zonefiles of registries to find domain names registered (those published so not all of them).
Also, why you are right in a generic sense that using a third party has its weaknesses, if you find a worthy registrar that both has access to many registries and that provides you with an API, you could then use it for your needs.
In short, I do not believe you can achieve this task with all cases (100% reliability, 100% TLDs, etc.). You will need some compromises but they depend on your initial needs.
Also very important: do not shell out to run a whois command, this will create many security and performance problems. Use the appropriate libraries from your programming language to do whois queries or just open a TCP socket on port 43 and send your queries on one line terminated by CR+LF, reading back a blob of text, this is basically only what is defined in RFC3912.
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