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Updated by David Paine on May 19, 2020
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Important SEO Tools For Web Developers

The list includes the important tools related to SEO

Check DNS Propagation worldwide. DNS Checker provides name server propagation check instantly. Changed nameservers so do a DNS lookup and check if DNS and nameservers have propagated.

Whatsmydns is ultimate tool to analize results of Live DNS propagation. We provide 25+ general DNS servers and Country wide listing to reliable DNS servers to view DNS propagation results. Prominent DNS services from USA, UK, Australia, Canada, Germany, India, Pakistan can be utilized to perform Whats My DNS propagation queries

DNS Health check tool offers to generate complete domain DNS and MX record health report. It also checks MX records against SMTP service and check if your email server IP and domain IP exists in blacklists services or not. provides free lookup tool to check location of your Public IP Address. It finds this data through various GEO IP databases and online services. Just enter an IP and check its location easily.

IP Location lookup tool finds your real IP address location based on coordinates found for your IP address in geo IP databases. Just enter any IP or domain name, and we let us tell you from where it originates.

What is my IP Address? Your question is answered here. Lookup your IP and check updated location data on map. Also check the IP owner and latitude, longitude coordinates.

Subnet Calculator finds Network Address, Subnet Mask, Broadcast Address, and Host IP Address by using the IP Address and subnet mask input you give. Enter the IP Address and subnet mask to calculate the result.

Internet Speed Test allows you to check your internet speed, experiencing slow internet? then check your WIFI DSL internet speed with this free speed test service.

check website down status. Is your website down for everyone or only you.

URL Decode Online converts the given URL Encoded String to a normal URL format with special characters. Just paste the URL Encoded text and instantly decode a URL. Works with PHP, Javascript and JAVA

Resize Images Online with this simple image resize tool. Resize any JPG or PNG Image. You can also crop, rotate, and flip images on real-time, and download the edited image in your computer.

Get information about the web host, IP address, name servers & more.

Enter text to URL decode. Converts the text into a percent encoded string

Improve your Website speed with minify HTML tool. Reduce the size of the HTML code and improve website speed.

This is an Online Validator to validate your Javascript

Convert btc to usd online. See conversion rates and live price updates. Check bitcoin to us dollar price conversion and live rates, also calculate btc trading profits.

Port Scanner tool scans the most common ports used by Windows services, Ubuntu servers, favorite games, and others. You can also scan any custom port or scan ports against any IP address or a domain name.

Trace any email address online. Just Paste the email message source and locate the original sender IP, real location, latitudes, and longitudes with the best email header analyzer tool in the market.