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:salesforce.com/products/platform/app-dev/lightning-platform/?d=70130000000f27V&internal=true redirected to: www.salesforce.com/products/platform/app-dev/lightning-platfor...
favicon.ico:
site title:Lightning Platform - Salesforce.com
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
Location htt????/www.salesforce.com/products/platform/app-dev/lightning-platform/
Transfer-Encoding chunked
HTTP/1.1 200 OK
Date Sat, 23 Jun 2018 19:45:59 GMT
Server Apache
X-Frame-Options SAMEORIGIN
Last-Modified Wed, 20 Jun 2018 13:58:15 GMT
Accept-Ranges bytes
Vary Accept-Encoding
Content-Encoding gzip
X-Content-Type-Options nosniff
Referrer-Policy no-referrer-when-downgrade
X-UA-Compatible IE=9; IE=8; IE=7; IE=EDGE
Content-Type text/html
Content-Length 37092

Meta Tags

title="Lightning Platform - Salesforce.com"
http-equiv="X-UA-Compatible" content="IE=11; IE=10; IE=9; IE=8; IE=7; IE=EDGE"
http-equiv="content-type" content="text/html; charset=UTF-8"
http-equiv="Content-Language" content="en_us"
charset="utf-8"
content="width=device-width, initial-scale=1.0, maximum-scale=1.0" name="viewport"
name="keywords"
name="description"
property="og:title" content="Overview"
property="og:description"
property="og:image"
property="og:site_name" content="Salesforce.com"
property="og:url" content="htt????/www.salesforce.com/products/platform/app-dev/lightning-platform/"
property="og:type" content="website"
property="og:locale" content="en_us"
property="fb:admins"
property="fb:app_id" content="149533758430156"
property="twitter:domain" content="www.salesforce.com"
property="twitter:card" content="summary"
property="twitter:url" content="htt????/www.salesforce.com/products/platform/app-dev/lightning-platform/"
property="twitter:site" content="@salesforce"

Load Info

page size387576
load time (s)1.019009
redirect count1
speed download36400
server IP96.43.149.26


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