If this helped you, consider 
- Check redirection of various shortened URLs without clicking on the URL
- Investigating URL Shorteners
- Various investigations for smishing URLs
- Smishing URL and malware APK collection
- SMS Phishing campaigns Collection
- Phishing Kit Dissection
Check redirection of various shortened URLs without clicking on the URL (credits: aware-online)
Free Website to unshorten URL: unshorten.it
curl -i <shortened URL>
A fantastic resource on URL shorteners is created by URLTeam.
shrtco.de shortened URLs
https://api.shrtco.de/v2/info?code=<enter code>
rb.gy shortened URLs
https://app.rebrandly.com/public/links/share?href=<enter rb.gy link with code>
cutt.ly shortened URLs
https://cutt.ly/<short code>-stats
is.gd/v.gd shortened URLs
https://is.gd/forward.php?format=json&callback=myfunction&shorturl=<short-code or shortened URL>
t.ly shortened URLs
https://t.ly/stats?url=<shortened URL>
Investigations for smishing URLs (credits: maltego)
Scripts to investigate smishing URLs
Using safari and physical iPhone
One can also simply use an iPhone simulator through Xcode and use the web inspector debug using safari.
Virustotal collection of smishing URLs and malware APKs spread through smishing
NHS Monkeypox phishing kit by @jcybersec
SMS Phishing Campaigns by @jcybersec
Developed with ❤️