Friday, September 2, 2016

Best Free Cloud Storage Services to Safe and Secure Your Data

Cloud storage let you access your photos, videos, documents and other important information anywhere and anytime, and also keep your data safe and secure from local hardware damages or other form of data losses you may encounter and to protect your digital data cloud storage services provides free online storage where you can easily store and share your personal files.
Cloud storage provides an easy solution to email attachments where you can just share a file or folder link with access level rather than attaching the files, you can collaborate in a group to share work, view, edit and upload files and share thoughts on group projects.
Cloud storage becoming more and more popular day by day because of safe, secure and reliable anywhere access of files, photos, videos and important documents and lots of sharing options which is a another plus point to any cloud storage.
And, to keep in view all these features we have reviewed and listed the top 5 best free cloud services for you.
  
Google Drive offers you a decent deal of pay as you grow and you get 15 GB of free storage. You’ll have to pay additional fee if use more than 15 GB free storage. In an easy to use interface you can even directly drag or upload folder from your local storage using Chrome browser or installing a Java-Based Folder Upload applet to upload folders from any other browser.
Installing Google Drive for PC or MAC let you easily sync files shared in your My Drive folder. Anything you edit, modify, add or remove will be reflected in your Google Drive account and vice versa.
You can change sharing settings to allow your friends and colleagues to access your uploaded files and  you can also have the option to share your files with whom you want to share with choice of access level you set by which you can share documents with your friends and colleagues without sending email attachments.
You can make any file, document or folder private, share with a link, make it public on web and set access level to any group or individual you want.
FREE STORAGE: 15 GB
FEATURES: Pay as you use in addition to free storage, Upload folders, Google Drive for MAC/PC, Auto sync, File sharing with access level, Share files with a link or make It public on Web
Dropbox is one of the largest cloud storage providers and offers great list of services and features.
Though there’re endless opportunities of features a cloud storage could provide but not all can be provided with the start and Dropbox still offers great list of features a cloud storage should offer. Dropbox offers 2 GB free storage which you can increase upto 16 GB with their referral program.
Dropbox works on almost all platforms; Windows, MAC, Android, iPhone, Blackberry, Linux so, it let you access your files on device you’re accessible to anywhere anytime. Auto sync feature make it feel like the whole system is just one drive whether you have a connection on not you can access files anytime becauseDropbox updates only changes to files rather than transferring the whole thing.
Inviting and sharing with friends and colleagues is the common feature in all cloud storage services and Dropbox also let you invite people to folder, share link and create photo galleries viewable to anyone you choose.
And, if by chance you accidently deleted any file or folder then you can restore your data within a month you have deleted that, because Dropbox keeps one month history of you work.
FREE STORAGE: 2 GB (initially)
FEATURES: Increase free storage upto 16 GB, Auto sync, Work offline, Folder invite, Social sharing, Backup deleted files within a month

iCloud is the cloud service provided by Apple which works with MAC, iOS devices as well as PCs. iCloud is more than just a cloud storage, you can auto sync music, pictures, contacts and other files from your MAC and iOS devices using iTunes Match.
If you’re a music lover then iCloud offers you to store and stream music right from iCloud, you can store your entire collection of photos and music in iCloud and it acts as media server for your iOS devices.
iCloud provides 5 GB of free storage in addition to it 10 GB for $20 per year, 20 GB for $40 per year and 50 GB for $100 per year.

Web Crawlers Search engines and User-Agents

Web Crawlers
Web crawlers, also known as web spiders or internet bots, are programs that browse the web in an automated manner for the purpose of indexing content. Crawlers can look at all sorts of data such as content, links on a page, broken links, sitemaps, and HTML code validation.

Search engines like Google, Bing, and Yahoo use crawlers to properly index downloaded pages so that users can find them them faster and more efficiently when they are searching. Without crawlers there would be nothing to tell them that your website has new and fresh content. Sitemaps also can play a part in that process. So web crawlers, for the most part, are a good thing. However there are also issues sometimes when it comes to scheduling and load as a crawler might be constantly polling your site. And this is where a robots.txt file comes into play. This file can help control the crawl traffic and ensure that it doesn’t overwhelm your server.

Web crawlers identify themselves to a web server by using the User-agent field in an HTTP request, and each crawler has their own unique identifier. Most of the time you will need to examine your web server referrer logs to view web crawler traffic.

Robots.txt

By placing a robots.txt file at the root of your web server you can define rules for web crawlers such as allow or disallow that they must follow. You can apply generic rules which apply to all bots or get more granular and specify their specific User-agent string.

Learn more about the Top Search engine Bots
There are hundreds of web crawlers and bots scouring the internet but below is a list of popular web crawlers and bots that we have  been collected based on ones that we see on a regular basis within our web server logs.

Googlebot: Googlebot is Google’s web crawling bot (sometimes also called a “spider”). Googlebot uses an algorithmic process: computer programs determine which sites to crawl, how often, and how many pages to fetch from each site. Googlebot’s crawl process  begins with a list of webpage URLs, generated from previous crawl processes and augmented with Sitemap data provided by webmasters. As Googlebot visits each of these websites it detects links (SRC and HREF) on each page and adds them to its list of pages to crawl. New sites, changes to existing sites, and dead links are noted and used to update the Google index.

"Google+"Another one you might see popup is Google+. When a user shares a URL on Google+ or an app writes an app activity, Google+ attempts to fetch the content and create a snippet to provide a summary of the linked content. This service is different than the Googlebot that crawls and indexes your site. These requests do not honor robots.txt or other crawl mechanisms because this is a user-initiated request.



"Baiduspider " Baiduspider is a robot of Baidu Chinese search engine. Baidu (Chinese: 百度; pinyin: BÇŽidù) is the leading Chinese search engine for websites, audio files, and images.

"MSN Bot/Bingbot" This is a web-crawling robot (type of Internet bot), deployed by Microsoft to supply Bing (search engine). It collects documents from the web to build a searchable index for the Bing (search engine).
   


"Slurp Bot"Yahoo Search results come from the Yahoo web crawler Slurp and Bing’s web crawler, as a lot of Yahoo is now powered by Bing. Sites should allow Yahoo Slurp access in order to appear in Yahoo Mobile Search results.dditionally, Slurp does the following:

Collects content from partner sites for inclusion within sites like Yahoo News, Yahoo Finance and Yahoo Sports.
Accesses pages from sites across the Web to confirm accuracy and improve Yahoo’s personalized content for our users.

"Yandex Bot" Yandex bot is Yandex’s search engine’s crawler. Yandex is a Russian Internet company which operates the largest search engine in Russia with about 60% market share in that country. Yandex ranked as the fifth largest search engine worldwide with more than 150 million searches per day as of April 2012 and more than 25.5 million visitors.

"Soso Spider " Soso.com is a Chinese search engine owned by Tencent Holdings Limited, which is well known for its other creation QQ. Soso.com is ranked as the 36th most visited website in the world and the 13th most visited website in China, according to Alexa Internet. On an average, Soso.com gets 21,064,490 page views everyday.

"DuckDuckBot"DuckDuckBot is the Web crawler for DuckDuckGo, a search engine that has become quite popular lately as it is known for privacy and not tracking you. It now handles over 12 million queries per day. DuckDuckGo gets its results from over four hundred sources. These include hundreds of vertical sources delivering niche Instant Answers, DuckDuckBot (their crawler) and crowd-sourced sites (Wikipedia). They also have more traditional links in the search results, which they source from Yahoo!, Yandex and Bing.

"Baiduspider"Baiduspider is the official name of the Chinese Baidu search engine’s web crawling spider. It crawls web pages and returns updates to the Baidu index. Baidu is the leading Chinese search engine that takes an 80% share of the overall search engine market of China Mainland.

"Sogou Spider"Sogou Spider is the web crawler for Sogou.com, a leading Chinese search engine that was launched in 2004. it has a rank of 103 in Alexa’s internet rankings. Note: The Sogou web spider does not respect the robots.txt internet standard, and is therefore banned from many web sites because of excessive crawling.
"Exabot"Exabot is a web crawler for Exalead, which is a search engine based out of France. It was founded in 2000 and now has more than 16 billion pages currently indexed.

"Facebook External Hit"Facebook allows its users to send links to interesting web content to other Facebook users. Part of how this works on the Facebook system involves the temporary display of certain images or details related to the web content, such as the title of the webpage or the embed tag of a video.
"Alexa Crawler"Ia_archiver is the web crawler for Amazon’s Alexa internet rankings. As you probably know they collect information to show rankings for both local and international sites.
"Google Feedfetcher" Used by Google to grab RSS or Atom feeds when users choose to add them to their Google homepage or Google Reader. Feedfetcher collects and periodically refreshes these user-initiated feeds, but does not index them in Blog Search or Google’s other search services (feeds appear in the search results only if they’ve been crawled by Googlebot).

Best Online Free Conference Call Services

Free Conference Call is an excellent  and important online service. We do aconference call for many purposes. We can connect with all of our friends at the same time in a conference call. A conference call is a telephone call in which someone talks to more than one people at the same time. We can use this technique in  online and we can make the free conference call. An online free conference call is an excellent service. There are a lot of applications/software that enables you to make free conference calls/video conferencing. I will give you a list of best free conference call services.

Skype

Skype is the best and most popular free conference call service. It is an application that allows the users video calls and video chat. Skype is a free VOIP. Skype is really easy to use, just download onto your computer and invites other to join. You can easily make a conference call using Skype. Skype is available for Windows, Android, Mac, Linux, iOS, Blackberry, Tablets and more. It was developed by Skype Technologies(Microsoft Corporation) in 2003. This free conference call service is available in 38 languages. 



FreeConferencePro

FreeConferencePro is one of the best free conference call services. It is really popular among the conference call users. You can easily make a conference call using this service. FreeConferencePro will record a custom greeting for you for free besides conference call.



Google Voice

Google Voice is an excellent free conference call service. It is a telephony service and provides call forwarding and voicemail services. It also provides  international call termination services for Google Account customers. Google Voice was developed by Google in 2009. you can easily make a free conference call using Google Voice.



Go ToMeeting

Go ToMeeting is one of the most popular free conference call services. It is an online meeting, desktop sharing and video conferencing software. It enables the users to meet with other computer users, customers, clients and more via internet. It was developed by Citrix. It is really easy to use.



UberConference

UberConference is an excellent, cloud-based congerencing service. It was developed by Switch Communications, Inc. in 2012. It is a California-based Telephony service. UberConference provides you a visual way to who is talking with you. 

   


SightSpeed

SightSpeed is one of the best video and voice calling service for Mac and PC. It is an excellent free conference call service. SightSpeed provides VoIP and instant messaging software for Windows and Apple Macintos operating systems. It was developed by SightSpeed Inc. in 2007. 



Free Conference Calling

Free Conference Calling is a free conference call service. It provides you free conference calling and other facilities so that you can make a conference call without any hesitation. You can create calls that consist  of  up to a 1,000 people and you get all the details about your conference call on the Dashboard. 



Dimdim

Dimdim is a free conference call service. It is easy, open, online meetings and weinares. No installation required to use this service. It is easy to use. It provides one-click audio, video and screen sharing and instant meeting capabilities. 



Tokbox

Tokbox is a free conference call service. Tokbox offers free group video conferencing.  You can connect face to face with 200 people. You need not any download, just click and use.



MegaMeeting

MegaMeeting is a web-based conferencing service. It provides web and video conferencing software for online meeting. This software is compatible with Windows, Mac, Linux. MegaMeeting was founded by Dan Richmond and Scott Goldman in 2003. It has 30 days free conference call service.


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