You can manage most part of WordPress site using plugin. These essential plugin are those plugin which help you to manage WordPress site. These plugin are categories as Caching Plugin, SEO plugins, Anti-spam plugins, Security plugins, Comment Management Plugins, Social-bookmarking plugins, Statistics plugins, Backup plugins, Forms plugins, Redirection Plugin, RSS Subscription Related, Editorial Calendar Plugin, Email Opt-in Plugin, Analytics Plugin, Contact Forms Related, Social Networking, Photo Gallery Plugin, Other Very Useful Plugins.
Each categories have many good plugins so all depend upon you which WordPress Plugin is suitable for your site. So I am talking about Essential Plugin that Manage WordPress Site.
W3Total Cache is the among the best WordPress caching plugin which improve your website’s performance by caching the pages, objects, minifying the databases by content delivery network support.
CloudFlare Plugin protect your blog from spammers. CloudFlare display the IP addresses of person who comments on your blog. So, You can protect your blog site from online spammers and hackers, and it helps your website load faster as well.
WP Super Cache
WP Super Cache is a very fast WordPress caching plugin that generates static html files from your dynamic WordPress blog. So instead of loading the heavy PHP scripts of your blog, your visitors will be served with these static html files which will make your blog appear to load faster.
WordPress SEO by Yoast
This is one of the most complete WordPress SEO plugins available so far. You can perform almost any SEO functionality for your blog with the help of this invaluable plugin by Yoast. Not to be attempted by new users though.
All in One SEO Pack
This plugin is the first choice for new and inexperienced WordPress users, who want their blogs to be fully Search Engine Optimized without digging deep into SEO. It provides you with almost every function needed in just a single page.
Google XML Sitemaps
This Google XML SItemaps plugin generates XML sitemaps for your WordPress blog, so that it becomes easy for crawlers like Google and Bing, to index your site better.
This is an all-in-one SEO plugin, that gives you a user-friendly approach of on-page optimization for your WordPress blog. It is available for free and has tools for almost every optimization required.
Anti spam (security) plugins
SI CAPTCHA Anti-Spam
This plugin prevents spam from automated bots by adding a CAPTCHA in comment, registration, login and lost password forms.
Akismet is possibly the best way to protect your website from web spam. Akismet filters comments and trackback spam, so that you can focus more on managing other important things. It runs on autopilot and provides 24-hour protection.
reCAPTCHA is most probably the most popular and widely accepted CAPTCHA systems by all users. This plugin integrates reCAPTCHA anti-spam methods in WordPress as comment, registration and email protection.
All In One WP Security & Firewall
The All In One WordPress Security and Firewall is the ultimate security plugin that will take your WordPress site’s security to a whole new level.
Wordfence is a free, open source security plugin for WordPress that provides enterprise level security. It can scan your entire file system comparing files to the core WordPress repository including themes and plugins. This is excellent for detecting altered files which is almost always and indication of a hack or security breach.
BulletProof security plugin offers website security protection against: XSS, RFI, CRLF, CSRF, Base64, Code Injection and SQL Injection.
Comment Luv helps you to increase comments and traffic to your blog and also gives the opportunity to your blog of going viral in Facebook, Twitter and Google Plus. It also reduces spam, shows stats of links being clicked, allows commentors to use their name in comments, and many more.
Disqus is a powerful commenting system that helps you to build an active community of users by effective tools and features like Realtime Comment System, Social Integration, The Community Box, etc.
Subscribe to Comments
This plugin allows commenters to subscribe for email notifications to subsequent comments on a particular post.
Social Warfare is our flagship product here at Warfare Plugins. You see, we couldn’t find a WordPress plugin that did everything that we needed a social sharing plugin to do so we decided to go ahead and create one ourselves.
Social Warfare allows you to set custom titles, descriptions and images that will be used when visitors share articles from your website. It even allows you to craft custom tweets and custom Pinterest images that will pre-populate the share boxes for your site visitors.
Share Buttons by Lockerz
Share Buttons make sharing articles in your site easy and simple, by providing a drop-down menu with more than 100 social networking and bookmarking sites to choose from and share to.
AddThis allows your user to share your content at 330 of the most popular bookmarking and social networking sites including Facebook, Twitter, Digg, Reddit, StumbleUpon and many more.
The ShareThis plugin allows the sharing of content from your site through email and 50 different social networks including Facebook, Twitter, Digg, Reddit, and many more. This plugin also has Facebook’s Like button and Google’s +1 button for easy sharing of articles.
Sociable adds a bar of icons of different social networking and bookmarking sites that you can choose for your articles. If they see what they like, your readers can easily share the contents to many bookmarking sites. You can choose to display the sites you want for sharing from the control panel.
Enables Google Analytics on all pages. This one seems to be simple and does the job. However, the developer doesn’t seem to be very responsive.
Google Analytics for WordPress – This plugin used to be really good but since the original developer sold this plugin, it has gone downhill (many users have reported to us that it doesn’t work well anymore). So I would recommend you to use one of the other alternatives listed above.
Clicky is a real-time web analytics for tracking your website’s visitors. It has great features like Real Time Analytics, Visitor Segmentation, Twitter Analytics, Mobile Version, Video Analytics and many more.
Statpress is a real-time tracking plugin that integrates into with the WordPress platform enabling you to track the data of your visitors. It also collects informations of spiders, search keywords, feeds, browsers, OS etc.
BackUpWordPress will back up your entire site including your database and all your files on a schedule that suits you.
BackupBuddy is a complete solution, which can backup, restore and migrate WordPress sites with ease. It can backup your entire WordPress as well as install, restore it with a single click, or migrate from one domain or server to another in a few clicks.
VaultPress by Automattic is considered to be one of the best WordPress Backup and Security plugins for “Every post, picture, and page. Every comment, revision, and setting. Everything.” in the market. It is perfectly suitable for personal, professional, small and medium business sites.
This plugin allows you to repair, backup and restore your databases. It also supports automatic scheduling of backups and optimization.
WP-Optimize is a simple yet effective WordPress cleanup plugin, which can clean your databases and optimize it without phpMyAdmin. It can optimize databases by removing post revisions, spam and unapproved comments.
Contact Form 7
Contact Form 7 plugin is a simple and flexible plugin that you can use to manage multiple forms, customize and mail its contents. It can also be punched with Akismet of CAPTCHA for spam filtering and so on.
Gravity Forms (Premium)
Gravity Forms is one of the best contact form plugins that can enable you to quickly design and edit forms right from your WordPress admin panel. It has various features like conditional logic, entry management, notifications, styles and layout, and many more that can give your forms a unique feel.
Ninja Forms offers intuitive and powerful form building. Even in its free version, you have everything you need to build beautiful and highly functional forms inside WordPress with a simple and straight-forward builder interface that any beginner can pick up in no time.
The level of customization of each form is also highly attractive to advanced users who want to create multiple complex forms with fine-tuned settings. And because it’s built to be developer-friendly, the growing number of add-ons makes it possible to do anything you can imagine with these forms.
RSS Subscription Related
This plugin detects all ways to access your original WordPress feeds and redirects them to your FeedBurner feed so you can track every possible subscriber.
Add to Any Subscribe Button
Helps readers subscribe to your blog using any feed reader.
Category Specific RSS Menu
A simple WordPress plugin to add category specific RSS subscription menu into your posts, pages, sidebars. Very handy when your blog covers multiple topic from non related subjects. This plugin was developed by me.
Editorial Calendar Plugin
Getting serious about your blog means you need a plan of attack. If you’re like me, it’s crucial to be able to visually map out and see what your plan is. It not only helps you stay on track, but it gives you an extra boost of motivation.
There is no better plugin for visually planning and coordinating your blog’s content than CoSchedule.
Email Opt-in Plugin
Popups sure are hotly debated. On one hand, a lot of folks sure do find them annoying. On the other hand, when used right, they double, triple, or even quadruple email subscriber opt-ins.
OptinMonster does all the heavy lifting for you making it easier than ever to create stylish popups that compel visitors to want to sign up to your email newsletter
This plugin includes lots of customization options that allow you to create an opt-in that works for your site. You can create traditional popups, floating bars in the header or footer, forms that slide into view after the user has scrolled a certain distance, and more.
Google Analytics by Yoast
Using Google Analytics to track crucial metrics for your blog is a given these days. There’s no such thing as having a website without installing Google Analytics.
In order to do this though, traditionally you would need to add a line of code to the header of your website or WordPress theme. That means if you ever change your WordPress theme, you’d need to remember to do that all over again. This is why we use Google Analytics by Yoast.
Contact Forms Related
Contact Form 7
Contact Form 7 can manage multiple contact forms, plus you can customize the form and the mail contents flexibly with simple markup. The form supports Ajax-powered submitting, CAPTCHA, Akismet spam filtering and so on.
The Contact Form plugin allows you to implement a feedback form to a web-page or a post in no time.
Gravity Forms –
Build and publish your WordPress forms in just minutes. No drudgery, just quick and easy form-building.
Social Media and Share Icons
Social media plugin which adds social media icons to your website with tons of customization features
This is a very useful plugin that allows your visitors to share a post/page with others. Supports e-mail and posting to social bookmarking sites.
Fat Free WordPress Social Share Buttons Plugin
This is a very simple and FAT FREE share button plugin that adds Google plus one, Facebook and Twitter share buttons to your blog posts.
Photo Gallery Plugin
The most popular WordPress photo gallery plugin.
Simple Photo Gallery
If you are looking for an effective, reliable, yet simple to use photo gallery plugin, then check this gallery plugin out. I use it whenever I need a photo gallery plugin.