webmail 
LiveChat 
Support 
It is used to determine whether a given website is accessible in other countries. Just Ping has monitoring servers all over the world, including Turkey, Egypt, and China, so if the ping results indicate 100% packet loss, the site is likely unreachable from that region.
Search the history of over 624 billion web pages on the Internet. If the domain ever had a website, its record will be here. The Internet Archive is also a non-profit library of millions of books, movies, software, music, websites, and more, all for free.
- ≫ who.is
If you want to know the contact address, email and phone number of the website owner, this free whois lookup service will help you. This is a universal lookup service, which means you can simultaneously query the whois database of all popular domain registrars.
You enter the URL of any website and this online service will show you the name of the company where the website is hosted. This can be useful if you need the web host's contact information to write a complaint or if you want to change your web server.
When there is a copyright claim against a website, a copy of that letter is filed in the Chilling Effects database. Anyone can check this public database for all copyright infringement claims against a particular website.
- ≫ myip.ms
MyIP.ms provides a comprehensive report of any website or IP address. Learn about your hosting provider, a website's physical location, a website's IP address change history, and DNS information. Netcraft also offers similar reports.
Reverse whois lookup will help you determine someone else's other sites. You can search the whois database by email address or domain registrant name.
You can use BuiltWith to learn about the technology of any website. It helps you determine a domain's email service provider, advertising partners, tracking widgets installed on a website, and whether the website is using CDNs like Amazon S3 or Google Cloud.
The certificate diagnostics tool will check a website's SSL certificate and ensure that it is installed correctly, is trusted, and does not display errors to any of your website visitors.
If you want to analyze your competitor's website, this is the ideal tool. SEM Rush will help you determine which organic keywords people are using to find a site, what the site's traffic is, and which are the competing sites.
When you buy a new domain or switch from one host to another, the domain DNS records change and it may take some time for these changes to propagate around the world. The tool checks DNS records from various geographic locations and can check your domain's A, CNAME, TXT and MX records. whatsmydns.net is also a good alternative.
Check out the design of a website on various types of devices, be they desktops, tablets, iOS and Android phones with different versions of operating systems.
Check the page speed score of any website on desktop and mobile devices. The higher this number, the better. The Google tool also offers suggestions on how you can improve your score.
It is a repository of all metrics related to the performance of a website. Keeps track of page size, average load time, and number of failed requests (missing resources) over time.
Use this open source spreadsheet-based website monitoring tool from Google to get alerts when your domain is down or inaccessible.
This tool monitors one or more web domains and sends email alerts when the domain expires, the domain is renewed, name servers change, or when registrant information is updated for the domain.
English 
Portuguese 
Spanish