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MX Lookup Tool - Check your DNS MX Records online - MxToolbox

MX Lookup Tool - Check your DNS MX Records online - MxToolbox

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Robots.txt Generator SEO Tools Tools to help you build and market your website. Firefox ExtensionsWeb Tools If you need feedback or have any burning questions please ask in the community forum so we can get them sorted out. Overview Overview of site contents. Internet Traffic Archive The Internet Traffic Archive is a moderated repository to support widespread access to traces of Internet network traffic, sponsored by ACM SIGCOMM. The traces can be used to study network dynamics, usage characteristics, and growth patterns, as well as providing the grist for trace-driven simulations. The archive is also open to programs for reducing raw trace data to more manageable forms, for generating synthetic traces, and for analyzing traces. Traces contributed to the archive have no restrictions as to what use may be made of them (except for traffic analysis as noted below). Traces may however have restrictions on redistribution.

How to Burst the "Filter Bubble" that Protects Us from Opposing Views The term “filter bubble” entered the public domain back in 2011when the internet activist Eli Pariser coined it to refer to the way recommendation engines shield people from certain aspects of the real world. Pariser used the example of two people who googled the term “BP”. One received links to investment news about BP while the other received links to the Deepwater Horizon oil spill, presumably as a result of some recommendation algorithm. This is an insidious problem. Much social research shows that people prefer to receive information that they agree with instead of information that challenges their beliefs. Prevent open relays on Exchange Server Open relays on corporate networks are a contributing factor to the volume of unsolicited e-mail currently flying around the Internet—and the presence of such relays is often unbeknownst to the owners of those networks. Are your e-mail servers vulnerable to mail relaying? In this edition of Security Solutions, Mike Mullins tells you how to determine if they are.

Amazon Route 53 - Domain Name Server - DNS Service Much like a phone book, the Internet’s DNS system manages mapping between names and numbers. In DNS’s case, the names are domain names ( that are easy for your users to remember. Instead of phone numbers, in DNS, these names are mapped to IP addresses ( that specify the location of computers on the Internet. A Deeper Look At Robots.txt The Robots Exclusion Protocol (REP) is not exactly a complicated protocol and its uses are fairly limited, and thus it’s usually given short shrift by SEOs. Yet there’s a lot more to it than you might think. Robots.txt has been with us for over 14 years, but how many of us knew that in addition to the disallow directive there’s a noindex directive that Googlebot obeys? That noindexed pages don’t end up in the index but disallowed pages do, and the latter can show up in the search results (albeit with less information since the spiders can’t see the page content)? That disallowed pages still accumulate PageRank?

Reverse IP Lookup - Find Other Web Sites Hosted on a Web Server Find other sites hosted on a web server by entering a domain or IP address above. Note: For those of you interested, as of May 2014, my database has grown to over 100 million domain names. I am now offering this domain list for purchase.

Exchange PowerShell: How to list all SMTP email addresses in Exchange In my last Exchange PowerShell post i looked at listing users hidden from the Global Address List. In this post we’ll look at listing all email addresses in use in Microsoft Exchange. This can be useful if you are trying to add an email address and you get an error message because it is already in use somewhere. Although email addresses are most often associated with mailboxes, they can be found in other items too. Infinite-social-wall by philipbjorge An infinite social stream based on RSS feeds with a MySQL backend. Hosted Version Coming Soon - A video demonstrating the functionality (unfortunately not showing the beautiful CSS3 transitions) can be seen on youtube.

check URL - This is a tool to help webmasters improve the way HTML pages are seen and parsed by search engines like Google, Yahoo, MSN, Ask,... If web pages have the correct HTTP server header response, and have valid (X)HTML mark-up, it is easier for search engines to parse them as intended by their author. This is more a viewer than a URL checker, it shows the server header and the content returned by an HTTP request to the URL you enter.

The 10 Tools of Online Oppressors - Reports SAN FRANCISCO In reporting news from the world’s most troubled nations, journalists have made a seismic shift this year in their reliance on the Internet and other digital tools. Blogging, video sharing, text messaging, and live-streaming from cellphones brought images of popular unrest from the central square of Cairo and the main boulevard of Tunis to the rest of the world. In Other Languages • Español • Português • Français • Русский • العربية • Multimedia • Audio Report: Offenders and TacticsIn Print • Download the pdfMore on This Issue • CPJ Internet Channel: Danny O'Brien's blog • Blogging in Egypt: Virtual network, virtual oppression • Burmese exile news site endures hacking, DDoS attacks

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