DRM (Digital rights management) – Digital content copyright management is a series of access control technologies to limit infringement of copyrighted digital content ownership rights. In a word, DRM was born to control what users can do with digital content.
Reasons to use DRM
It is a fact that no one wants to have their intellectual property stolen, but currently, the awareness of digital copyright is not really popular and the fastest way to protect your own intellectual property is to do so. is to use DRM.
So specifically how DRM can help you protect your intellectual property:
– DRM helps protect your own valuable or confidential documents, content, videos, images, or audio files.
– Control who can access your content for a certain period of time or the device used to access it.
– Get detailed information and analytics about users’ use of your content
– Give users access to content without apps or plugins on a continuous basis
Which businesses should use DRM?
Currently, the easy access to the internet makes it easy for data to be stolen and an important thing that any company needs to pay attention to is digital copyright protection. The most basic that can be mentioned is the content that the company created and then posted on blogs, websites, …
A specific example to make it easier for you to imagine is that if content companies like Netflix do not have DRM, then no one will spend money to buy monthly subscriptions anymore, so the company will suffer revenue effects.
Finally, it can be said that businesses that should use DRM can name a few specific names such as:
– Online education business companies
– Entertainment/music company
– Film production company
– Bookmaker,…
Advantages and disadvantages of DRM
Exercising control over digital content with the DRM digital content rights management tool offers the following benefits and minor limitations:
Advantage
Owners of digital content can easily control how users use their data files (gray matter).
Users can read file content or DRM-controlled content without any separate application. The reason is that DRM can help you read content through third-party applications. (For example, you will not have to experience the situation like on Spotify, you can only listen to music on this application even if you buy the Premium version).
When accessing, users will not need to perform cumbersome confirmation requests. This helps to improve the user experience.
Since DRM-encrypted media can be used on any device, consumers will partially benefit from adopting DRM standards.
DRM methods will ensure the safety of data along every step from content creation, and content loading until the content is in the hands of the user.
Disadvantages
Some users, when they do not have full control over the digital content files they have paid for, will find it inconvenient or even annoying.
Although specialized file-reading applications are not limited, users still have to go through specific applications to be able to read files with DRM. Without DRM, users can use applications that allow reading the desired file format.
When the license provider stops working, DRM files will no longer be worth using while other normal files can be used forever.
CDN (Content Delivery Network) also known as a high-performance content delivery network built for high-traffic systems, set up with multiple server clusters located in data centers with different geographical locations together, have a common task of distributing content, transmitting images, CSS, Javascript, Video Clip, Media Streaming, and File Download to end users as quickly as possible. The CDN’s working mechanism helps users quickly access the server data closest to their location instead of having to access to get the original data in a farther area, which is an effective solution to reduce the load and limit the impact on the main server system’s performance.
2. Popular CDN services in the world
CDN AWS – CloudFront
Amazon CloudFront is the world’s most popular content delivery network (CDN) that makes it easy to securely deliver Web sites, Videos, apps, and APIs with high speed and low latency. Built for developers, CloudFront makes it easy for businesses to customize their delivery to find the right balance of speed, security, and cost for their needs. All in all, the AWS CDN provides a good service. Although the basic CDN configuration can be very easy to deploy for most administrators, the more advanced CDN configuration is quite difficult to manage, requires quite a lot of time, and the features are not. too strong.
Advantages of AWS CDN:
Fast service team
Easy setup for basic plans
Fast-loading CDN speed
An easy change in CDN server location selection
Enables extensive server and resource settings with highly configurable packages
Reasonable management
Fast and reliable
CDN network is distributed in many regions around the globe
Disadvantages of AWS CDN:
Built primarily for IT/server admins
The cost of using CloudFront’s CDN is not the best choice
Expenses and payments are not clearly separated
The CDN customization and configuration interface needs to be designed to be more user-friendly for the administrator
Need more instructions on how to use the features
The above pros and cons are objectively summed up by us through quality assessments at Gartner and TrustRad. Thereby, we can see that users are quite satisfied with the outstanding advantages of AWS CDN.
However, besides that, AWS CDN still has some disadvantages that have not met the needs of users. In it, most of the reviews are not satisfied with the price and the management interface can cause some difficulties. Therefore, before you choose an AWS CDN, consider and consider a few other options.
Smart CDN
Akamai is a provider of CDN (Content Delivery Network) and Security services suitable for large enterprises. Akamai was established in 1998 at MIT Technology Park – USA, currently transmitting 30% of worldwide data traffic with network systems in most regions of the world.
Advantages of CDN Akamai
Powerful CDN technology can handle the needs of transmitting a variety of content (images, videos, live streaming…)
Very good customer service
Akamai is strong in the content delivery process with its method of mirroring the CSS and HTML elements of the Web page
Akamai’s CDN platform provides a network of cloud-connected servers in over 100 countries
Disadvantages of CDN Akamai
Higher cost compared to other CDN providers in the region
The CDN management interface is quite complicated
No intuitive user interface for configuration and setup instructions yet
Quite expensive for small businesses and organizations
Takes a long time to activate CDN (due to testing with many scenarios)
The above advantages and disadvantages of CDN Akamai are compiled by us through quality assessments at Gartner and TrustRadius. Similar to AWS CDN, Akamai CDN also has distinct advantages. However, the downside is still the high cost and the not-so-intuitive management interface.
CDN Cloudflare
Cloudflare offers CDN with more functionality than other CDN services. Cloudflare’s CDN helps fight DDoS attacks and stores static content on your website, making it faster to load and effectively reducing the load on your web server.
Advantages of Cloudflare CDN
Cloudflare’s free early-stage CDN and SSL are great perks for new sites
Cloudflare’s cost structure is suitable for many applications
Help your Website speed up quite effectively
Static data such as images, CSS, files, etc. are also gzip compressed by Cloudflare, so the download speed is faster.
Disadvantages of Cloudflare CDN
The way it works is not very user-friendly
The user interface is quite complicated
Instructions for using functions are still difficult to understand
If your Website is located on hosting with a server located in Vietnam, and the visitors are mainly from Vietnam, the use of Cloudflare slows down the page load speed because of the quality of the international and Vietnamese transmission lines. The reason is that this time the query will go around from Vietnam to CloudFlare DNS Server and then return the results to Vietnam.
Website uptime time depends on Cloudflare Server uptime.
The advantages and disadvantages of CDN Cloudflare are compiled by us through quality assessments at Gartner and TrustRadius. Cloudflare would be a good fit if you need an affordable CDN solution for a new website. But it may not be appropriate when your website is actually under targeted attack. At this time, to protect the safety of the website, the business may have to pay a large cost.
SSAI (Server-side ad insertion) is a combination of manifest manipulation, ad server communication, and ad bitrate and resolution normalization, all of which happen on the server side before presenting a manifest to clients. Server-side ad insertion may also be referred to as dynamic ad insertion, or ad stitching.
By whatever name it is known, server-side ad insertion is difficult to get right for numerous reasons:
Server-side ad insertion requires a highly scalable origination service
Personalized manifests are not cacheable
Reporting and custom player behavior require clients to know an ad has been played
Different ad standards (VAST, MAP), ad servers, origin servers, and player environments complicate server-side ad insertion workflows
To cope with fluctuations in demand for just-in-time server-side ad insertion, a highly scalable architecture is required – particularly for broadcasters that must deal with the sharp peaks in demand that breaking news, sports events, and popular TV series bring. Cloud-based video processing with a server-side ad insertion integration is one-way broadcasters can scale to meet audience demand.
When events are underway, the number of concurrent viewers can vary greatly and unpredictably. For example, viewership for a closely played game may remain steady for much of the contest, then surge by hundreds of thousands of new viewers during the last few minutes.
The key to managing viewer variances is in encoding and packaging that can be virtualized for rapid deployment and hosted in a cloud infrastructure for quick auto-scaling.
Because dedicated single-path hardware encoders and packagers lack flexibility, the practical solution is to spin up instances of cloud-based video processing as they are needed. The cloud is uniquely well-suited to creating millions of individually tailored manifests of content and advertising for live-streamed events.
Technology Behind SSAI
Dynamic ad insertion technology is a combination of several elements:
Manifest manipulator — responsible for creating a streaming playlist, which is a continuous combination of content and advertisements
Content delivery network (CDN) — a system of server nodes that automatically determines the optimal source to stream ads to the viewer
Ad decision server (ADS) — it chooses what ads to stitch into the video content based on the user’s location and other factors.
How Does Server-Side Dynamic Ad Insertion Work?
So, you decide to watch a movie, a TV show, or a news broadcast. Here’s what happens after you click “play”:
The video player sends a request to the SSAI vendor with user-specified data (geolocation, internet service provider, search engine queries, current trends, and other info).
The ad decision server creates a manifest that instructs the player. The manifest includes the advertisements for streaming, their duration, and beacons(markers that activate ads).
The content delivery network (CDN) sends the content with a specific manifest to the video player. The ads are sent to the CDN in multiple quality versions to adapt to the viewer’s internet connection.
The player automatically sends requests to the ADS when playback hits beacons, and the CDN server forwards the ads into the stream.
ADS creates reports about user behavior. It can include what part of the ad was seen and if the viewer interacted with it.
Server-Side Ad Insertion in Streaming Video
For broadcasters and video content providers, an inherent tension exists between the need to deliver a premium viewing experience – complete with start-over and time-shifted TV functionality – and to monetize streaming video offerings and services. The challenge of monetizing over-the-top (OTT) video content will only continue to grow as viewership on connected devices increases.
To optimize streaming video revenue opportunities, advertisers are increasingly seeking ways to match the interests of individual consumers with ads and deliver them in a non-disruptive way.
Ad personalization reduces the consumer desire to employ ad blockers and creates a mutually beneficial streaming experience for video providers and audiences. Beyond the relevance of topical interests, ad personalization can also connect with individual viewers in ways that are emotionally relevant to them, sparking changes in thinking as well as in purchasing.
While the opportunities to capitalize on ad personalization and ad insertion grow, the question for broadcasters, pay TV operators, content programmers, and all video providers is, what is the best way to meet the needs of the video business and the viewing audience?
The solution needs to balance monetization requirements with the ability to provide a high-quality viewing experience for subscribers – a balance that server-side ad insertion can consistently maintain.
Not every website needs to use a CDN. However, if you know how to apply CDN to your website, that process will be highly effective. CDNs are really useful when:
The website’s server is located far away from the user.
Large hits consume a lot of bandwidth.
There are many visitors from many different countries.
Use the Load Balancing FailOver technique.
2. What to keep in mind when choosing CDN service?
What to keep in mind when choosing CDN service
Most customers when choosing CDN service pay attention to the PoP system. Ideally, you should choose CPN services that support PoP in the countries with the most users.
The second thing you need to pay attention to is the price and payment method. Because you will probably have to work with international suppliers. Therefore, the issue of payment and price is somewhat complicated. In addition, the form of payment is also one of the issues that are worthy of attention. You can choose to pay as much as you want or pay monthly, yearly, or quarterly depending on your ability.
3. Some common questions when using CDN that customers need to consult?
What content can a CDN deliver over the Internet?
Content Delivery Networks (CDNs) can deliver two types of content: static and dynamic content.
– Static content
Static content is website data that doesn’t change for one user or another. All users see the same image, logo, and font style of the website header, and the business doesn’t change these often. Static data is data that doesn’t need to be created, processed, or modified, and it’s also the right type of data to store on a CDN.
– Dynamic content
Dynamic content, such as social media news feeds, weather reports, login statuses, and chat messages, is content that varies among website users. This data will change based on the user’s location, login time, or user preferences, and the site must generate data for everyone and all user interactions.
Which website should use CDN?
Almost all websites today should use CDN except for websites with the purpose of introducing businesses normally. For websites that operate for user access, you are encouraged to use CDN.
How does CDN help speed up a website?
CDN helps speed up the website by speeding up the rendering of CSS, Javascript, images, and videos fastest.
Is CDN safe or not?
If you choose reputable CDN services, it is 100% safe.
What is the difference between a VPN and a CDN?
VPN helps to hide the identity of the end-user. A VPN uses another computer as an access point to the website’s server. This gives users access to content that is blocked at their location. This content will not be blocked at the VPN server.
Is CDN the same as hosting?
Many customers often confuse these two concepts. Hosting is considered a warehouse for all goods to serve customer needs. And CDN acts like a transit station to bring goods to users more quickly.
Does CDN work with mobile devices?
They are compatible with any device.
Are CDNs the same?
Depending on the provider, each CDN will have different forms.
Here is the knowledge you need to know about CDN. Hopefully, through this article, you have grasped useful information to choose the right CDN for your website.
The Content Delivery Network (CDN) is a network of servers that store copies of static content within a website and distribute it to multiple PoP servers. The network of CDN servers is located all over the globe. From PoP (Points of Presence), data will continue to be sent to the end user. Through CDN, a copy of the content on the nearest server is returned to the user when they visit the website.
How does CDN work?
A content delivery network (CDN) works by establishing a point of presence (POP) or a group of CDN edge servers in multiple geographic locations. This geographically distributed network works on the principles of caching, dynamic acceleration, and edge logic computation.
Caching
Caching is the process of storing multiple copies of the same data for faster data access. In computing operations, the principle of caching applies to all types of memory and storage management. In CDN technology, this term refers to the process of storing the static content of a website on many servers in the network. Caching Operations in CDN work as follows:
A geo-located remote site visitor will make the first request for static web content from the site.
That request will go to the web application server or origin server. The origin server sends a response to that remote visitor. At the same time, the origin server also sends a copy of the response to the CDN’s POP in the closest geographical location to that visitor.
The CDN’s POP server will store the copy as a cached file.
Next time, when this or any other visitor in that location makes the same request, the cache server, not the origin server, will send the response.
Dynamic acceleration
Dynamic acceleration is the process of reducing server response times to requests for dynamic web content by having a CDN server intermediate between web applications and clients. Caching won’t be easy with dynamic web content because the content can change with every user’s request. CDN servers must reconnect to the origin server when there are any dynamic requests, however, they help speed up the process by optimizing the connection between these servers and the origin server.
If the client sends a dynamic request directly to the web server over the Internet, the request may be lost or delayed due to network latency. Opening and closing connections for security verification purposes can also be time-consuming. On the other hand, if a nearby CDN server forwards requests to the origin servers, they have established a reliable, persistent connection. For example, the following features can further optimize the connection between them:
Intelligent Routing Algorithms
Neighborhood by geographical location with the origin server
The ability of the client to process the request, which reduces the size of the request
Calculating boundary logic
You can program the CDN edge server to perform logical calculations that simplify client-server communication. For example, this server can perform the following tasks:
Examine user requests and modify caching behavior.
Validate and handle incorrect user requests.
Modify or optimize content before responding.
Distributing application logic between web servers and the edge helps developers offload the origin server’s compute requirements and improve site performance.
What is the use of CDN?
Content Delivery Networks (CDNs) help improve the normal functionality of the website while increasing customer satisfaction. Here are some typical use cases.
CDN response time is fast
CDN ensures website loading speed, online transactions are always smooth and stable. Users will appreciate sites with fast response times. This can also significantly increase the revenue the website brings in.
Toward the global market
If your website server is in only one country and you do not use a CDN, it will be difficult for you to reach other countries. The reason is that remote customers cannot access the website easily and quickly due to distance problems.
Global CDN service will help you serve more customers around the world because the access speed of the clients will be improved by servers distributed locally in the country where they live.
Helping businesses save costs
Instead of investing in infrastructure to have servers in multiple locations, a CDN service can help businesses and businesses save on large bills. CDN provides a platform. A single service can handle all operations separately. It’s also possible works well in many regions of the world for a very reasonable price.
Ensure users can access all times
CDN companies have servers everywhere. If a server has a problem that needs to be fixed. The user will be redirected to another server nearby. This will secure your website will always be visited by users. And greatly enhance the reputation and brand of the website.
Reduce server load and increase users when using CDN
The user will not refer to the website’s server directly. Which will be transmitted through servers located around the world. All of these servers contain the same website resource information. So the user experience is completely unaffected.
Due to such a reduction in load, more people can be active on your site at the same time. Because then the bandwidth is divided equally among the server areas closest to each user.
CDN Limits DDoS Attacks
DDoS attacks can cause enormous financial losses. And seriously damage the image of the company. A CDN can help you prevent such attacks.
Since CDNs are built with a distributed architecture, the infrastructure is also protected. The core is also protected by the firewall behind the CDN. Therefore, the possibility of a DDoS attack is also greatly reduced.
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