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:s3-ap-southeast-1.amazonaws.com/bsy/iportal/images/Airtel-Telecom-Consumers-Charter-English_E1231F1DD6CEC515479828D26BBCDB5F.pd...
site title:
Url ContentAdobe Portable Document Format
MIME Type / Internet Media Typeapplication/pdf
MIME Type application
File Extension.pdf
More Details (link to:)Adobe PDF
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 200 OK
x-amz-id-2 6oa1luY6Rx7l4pnPST3Fy2MSOev4jxKXrx85nmnxeLJi8JHOY0QNtN1vNd3TVIDwbKgZslU92iA=
x-amz-request-id 37296DC50421C229
Date Sat, 21 Sep 2019 20:35:05 GMT
Last-Modified Tue, 17 Apr 2018 05:10:04 GMT
ETag e2f9abad2e64a205f8a23bbbb257134e
Accept-Ranges bytes
Content-Type application/pdf
Content-Length 753242
Server AmazonS3

Load Info

page size753242
load time (s)0.228504
redirect count0
speed download0
server IP52.219.36.154


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