What are some online network tools that you use?
For example, for over ten years now, I've used https://intodns.com for quick reference of things like a domain's nameservers, A record or MX records. I know there have to be more modern and informative tools.
I also find myself using things like https://mtr.sh/ , https://ping.pe/ or things like https://www.whatsmydns.net/ frequently.
And then you've got things like https://bgp.he.net and https://bgp.tools/ and https://rpki.cloudflare.com/
Can we get a halfway decent list of useful online tools?
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For me, it's 1.1.1.1 because a lot of time need to check if DNS is working
https://whois.ws - quick check for domain information with /whois/domain.com
https://ipinfo.io - ip information
Github
I use dnstools.ws and been waiting for IN worker for a very long time.
https://tools.bunny.net also comes in handy quite often.
I have the downloadable WinMTR on all my computers, and iplocation.io is a permanently open tab in my phone's Chrome.
dns.google
I frequently check:
https://infobyip.com
https://ipleak.net
Ympker's Shared/Reseller Hosting Comparison Chart, Ympker's VPN LTD Comparison, Uptime.is, Ympker's GitHub.
Call me old, but I still use Unix commands, like: ping, mtr, dig, whois, nmap
The only exception is ipinfo.io which I rarely use for more details about some providers.
As a side note: I still love Linux Mint MATE.
F*ck Windows and all it's bloatware.
Same, but most these tools will check against multiple locations. Unless you've got a couple dozen geographically diverse servers, it's nice to get results from multiple sources, especially for DNS related stuff or MTRs.
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https://ping.sx
Most of the time I just use the command line versions of ping, mtr, whois etc, but one tool that I have found useful several times is https://zonemaster.iis.se/en/. It makes it so easy to verify correct delegation and propagation.
intodns - as previously mentioned.
mxtoolbox.com - not just for MX records.
whatismyipaddress.com - confirm working VPN, plus trace those feckers that port scan/probe etc.
https://www.ssllabs.com/ssltest/ - admittedly, not used much recently.
lowendinfo.com had no interest.
https://observatory.mozilla.org/
https://cryptcheck.fr/
Some of my used tools in addition to already mentioned:
https://dnschecker.org/ - DNS
https://viewdns.info - all around tool
https://crt.sh - ssl/tls certificates
Domain specific
https://host.io - domain details
https://gwhois.org - whois
http://hosterstats.com/ - domain history
https://whoisrequest.com/history/ - another domain history
curl ifconfig.co / curl ifconfig.me - quick VM public IP lookup
for ping latency, I use mostly mtr.sh or ping.pe, at times https://www.globaltraceroute.com/ if I need a more exotic location (thank you @rm_ for sharing the tool last year!
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https://getipintel.net
For getting my public IP, I use https://icanhazip.com/ - It's curl/wget friendly which is really great for scripting & command line usage.
I also like checking RDNS sometimes; I use https://remote.12dt.com/ for this.
Cheap dedis are my drug, and I'm too far gone to turn back.
DNSTools India node should be coming back soon
Edit: should be back now.
dnstools.ws can do reverse DNS using the DNS lookup option if you select PTR as the record type, but maybe I should make it clearer in the UI? It used to have a separate "Reverse DNS" option but I removed it to make room for the MTR feature.
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