If you are not sure if the website you want to visit is safe, you can check it out here. Enter the address (url) of the website and see the invisible elements, such as a header or meta data.
site address:launchpad.net/~cryptoexchange/+archive/ubuntu/ppa27 redirected to: launchpad.net/~cryptoexchange/+archive/ubuntu/ppa2...
favicon.ico:
URL does not point to a web page (html/xhtml) or read error or page not found. (410)
Url ContentHyperText Markup Language (HTML)
MIME Type / Internet Media Typetext/html
MIME Type text
File Extension.html
More Details (link to:)Wikipedia: HTML
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 301 Moved Permanently
Date Sun, 20 Jan 2019 13:20:59 GMT
Server Apache
Location htt????/launchpad.net/~cryptoexchange/+archive/ubuntu/ppa27
Content-Length 267
Content-Type text/html; charset=iso-8859-1
HTTP/1.1 410 Gone
Date Sun, 20 Jan 2019 13:20:59 GMT
Server zope.server.http (HTTP)
X-Powered-By Zope (www.zope.org), Python (www.python.org)
X-Lazr-OopsId OOPS-6c8795bf906582179b38f37162761db3
Content-Type text/html;charset=utf-8
X-Cache MISS from banana
X-Cache-Lookup MISS from banana:3128
Via 1.1 banana (squid/3.5.12)
Vary Accept-Encoding
Content-Encoding gzip
Transfer-Encoding chunked

Meta Tags

title="Error: Page gone"
charset="UTF-8"

Load Info

page size9334
load time (s)2.77934
redirect count1
speed download1192
server IP91.189.89.223


* all occurrences of the string "http://" have been changed to "htt???/"