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:www.ncbi.nlm.nih.gov/stat?jsdisabled=true&ncbi_app=account&ncbi_db=&ncbi_pdid=login-page&ncbi_phid=3969176BB2BE60E10000000000960049 redirected to: www.ncbi.nlm.nih.gov/stat?jsdisabled=true&ncbi_app=account&ncbi_db=&ncbi_pdid=login-page&ncbi_phid=3969176BB2BE60E1000000000096004...
site title:
Url ContentGraphics Interchange Format
MIME Type / Internet Media Typeimage/gif
MIME Type image
File Extension.gif
More Details (link to:)Wikipedia: Graphics Interchange Format
Powered by: Very Tiny URL Shortener at https://vturl.net VeryTinyURL

Header

HTTP/1.1 301 Moved Permanently
Date Fri, 14 Dec 2018 12:52:06 GMT
Server Apache
Referrer-Policy origin-when-cross-origin
Location htt????/www.ncbi.nlm.nih.gov/stat?jsdisabled=true&ncbi_app=account&ncbi_db=&ncbi_pdid=login-page&ncbi_phid=3969176BB2BE60E10000000000960049
Content-Length 363
Content-Type text/html; charset=iso-8859-1
HTTP/1.1 200 OK
Date Fri, 14 Dec 2018 12:52:07 GMT
Server Apache
Strict-Transport-Security max-age=31536000; includeSubDomains; preload
Referrer-Policy origin-when-cross-origin
Content-Security-Policy upgrade-insecure-requests
Cache-Control no-cache, no-store, must-revalidate, max-age=0, proxy-revalidate, no-transform, private
Expires Thu, 13 Dec 2018 12:52:07 GMT
Last-Modified Sat, 15 Dec 2018 12:52:07 GMT
Content-Type image/gif
Vary Accept-Encoding
Content-Encoding gzip
X-UA-Compatible IE=Edge
X-XSS-Protection 1; mode=block
Content-Length 57

Load Info

page size57
load time (s)2.927818
redirect count1
speed download0
server IP130.14.29.110


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