<h2 style="text-align: justify;">1. What is polkadot?</h2>
Polkadot is a next-generation blockchain platform that enables the creation of multi-chain applications, allowing for interoperability between different blockchains. It aims to provide a seamless experience for users, developers and businesses to access a variety of specialized blockchains through a single interface, enabling a more connected ecosystem. It uses a unique governance model and consensus mechanism, and supports both on-chain and off-chain upgrades.
<h2 style="text-align: justify;">2. What is polkadot substrate?</h2>
Substrate is an open-source blockchain development framework developed by the Web3 Foundation. It provides a modular toolset for building decentralized applications and custom blockchains, including all the necessary components like consensus, networking, and storage. Substrate is the foundation for building blockchains on the Polkadot network, allowing developers to create specialized blockchains that can seamlessly interact with each other through the Polkadot relay chain. In this way, Substrate provides a powerful platform for creating a diverse and interconnected decentralized ecosystem.
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1675673277785.jpg" />
<h2 style="text-align: justify;">3. Substrate is common in most Polkadot eco-systems</h2>
Substrate is a popular choice among developers building on the Polkadot ecosystem. It provides a flexible and modular framework that allows developers to easily create and launch their own custom blockchains, which can then be connected to the Polkadot network and interact with other blockchains in the ecosystem. Substrate also offers a rich set of features and functionalities, making it an attractive choice for developers who want to create advanced decentralized applications and services. Additionally, the open-source nature of Substrate and its active development community ensure that it is constantly evolving and improving, making it a solid foundation for building on the Polkadot network.
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1675673288227.png" />
<h2 style="text-align: justify;">4.&nbsp;&nbsp;Some of the key features of Polkadot Substrate</h2>
Modularity: Substrate provides a modular framework that allows developers to easily create and launch their own custom blockchains. This means that developers can pick and choose the features they need and build their own custom blockchain tailored to their specific use case.
Interoperability: Substrate is the foundation for building blockchains on the Polkadot network, allowing for seamless interaction between different blockchains in the ecosystem. This enables a more connected and interoperable decentralized environment.
Scalability: Substrate is designed for scalability, allowing blockchains built on it to handle high levels of traffic and support a large number of users.
Security: Substrate is built with security in mind, making use of cryptographic algorithms and consensus mechanisms to ensure the integrity and security of the network.
Development Community: Substrate has a large and active development community, making it easy for developers to get support and find resources for building on the platform.
Customizability: Substrate provides a wide range of customization options, allowing developers to create unique and specialized blockchains that are tailored to their specific use case.
On-Chain Governance: Substrate supports on-chain governance, allowing network participants to make decisions collectively and directly through voting mechanisms.
WASM Execution Environment: Substrate includes a WebAssembly (WASM) execution environment, allowing developers to write smart contracts in a variety of programming languages and easily deploy them to the blockchain.
<h2>5. Implemented projects using Polkadot's Substrate</h2>
There are many projects that have been built using Substrate on the Polkadot network. Some of the notable ones include:
- Kusama: A highly scalable and secure blockchain platform that is built on Substrate and designed for early adopters, developers, and researchers.
- Acala: A decentralized finance (DeFi) platform that offers stablecoins, lending and borrowing services, and asset management.
- Robonomics Network: A decentralized platform for building and deploying robotic systems and decentralized applications.
-&nbsp;Plasm Network: A layer 2 scaling solution that enables fast and affordable transactions on the Polkadot network.
- Edgeware: A Web3 platform that is built on Substrate and designed to support decentralized applications and governance.
- Darwinia Network: A multi-chain platform that provides cross-chain bridge services, decentralized exchange, and asset management.
- Litentry: A decentralized identity solution that enables secure and private management of personal data.
These are just a few examples of the many projects that have been built on Substrate on the Polkadot network. With its rich set of features, Substrate is an attractive platform for building a wide range of decentralized applications and services.

What is Polkadot substrate?

What is polkadot substrate?

<h2 style="text-align: justify;">1. What is a DOT Wallet token storage wallet?</h2>
Investors can store DOT tokens on the following wallets:
Familiar storage wallets such as Trust Wallet, MetaMask, Coin98 Wallet, PolkaWallet, Binance Smart Chain, etc.
Wallets on exchanges that accept DOT tokens such as Binance, FTX, Coinbase, Kucoin, Gate.io, etc.
Hardware wallets like Trezor, Ledger Nano, etc.
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1671510746383.PNG" alt="Pokadot - FAQs 2" width="800" />
<h2 style="text-align: justify;">2. What coins does the Polkadot ecosystem include?</h2>
There are more than 100 coins created from the Polkadot Ecosystem ecosystem. Some of the most prominent tokens that we can mention are: DOT, LINK, COMP, ANKR, REN, ONT, MOVR, TRAC, ZRX, OCEAN, REEF, EWT, etc.
What coins does the Polkadot ecosystem include?
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1671510768489.jfif" alt="Polkadot - FAQs" width="800" />
<h2 style="text-align: justify;">3. Does Coin DOT have potential? (DOT Coin Futures)</h2>
The potential of Coin DOT in the future is recognized and appreciated by many investors. Currently, more and more projects have the need to connect to the Polkadot network because its model is relatively simple and highly popular. Therefore, the demand for coins in the Polkadot project also tends to increase, thereby leading to a rapid growth in the value of DOT. However, in the short term, the price of DOT coin can also be affected by expectations, as well as investor sentiment towards the project.&nbsp;
Thus, it can be seen that the Polkadot ecosystem is on the rise as development teams realize the many benefits of implementing projects on Polkadot. Its unique design gives projects the ability to innovate, iterate, flexibly, and become more complete than previous platforms. Hopefully, through today's article, you have a good understanding of what Polka dot is , the outstanding features of the Polkadot project, as well as evaluating the potential of this project in the future.
To update more knowledge about financial investment as well as other basic terms in the virtual currency market, follow TradaFX's Coin section regularly!
Polkadot, Polkadot Explorer,&nbsp;Polkadot Testnet Explorer,&nbsp;Polkadot Blockchain Explorer, <a href="https://dotscan.com/">Polkadot Substrate</a>

FAQS About What is Polka Dot Project For New Investor

If you bring these two platforms to the balance, what will happen, together with TradaFX summarize some of the most important features below:
<h2>1/ Polkadot coin (DOT)</h2>
&ndash; In the process of construction and completion, so we do not know what the future will be
&ndash; Control assets on multiple single chains, forming a complex
&ndash; Can connect any smart contract or blockchain together
&ndash; Low transaction costs
&ndash; Upgrade without doing a Hard Fork
&ndash; Polkadot uses on-chain governance with a multi-channel system.
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1669693437932.png" alt="Compare Polkadot and Ethereum 1" width="800" />
<h2>2/Ethereum (ETH)</h2>
&ndash; Pioneering in smart contract technology, which has been operating stably for many years
&ndash; Assets can only be controlled on a single chain (single chain)
&ndash; Can only be traded with smart contracts that are run on the platform of Ethereum
&ndash; High transaction costs
&ndash; Upgrades must be done with a Hard Fork
&nbsp;
&ndash; Ethereum 2.0 governance remains unresolved
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1669693472534.jpeg" alt="Compare Polkadot and Ethereum 2" width="800" />
<h2>3/ Information about Polka Dot Coin</h2>
<ul>
<li>Token Name: Polkadot</li>
<li>Ticker: DOT</li>
<li>Blockchain: Polkadot</li>
<li>Contract: 0xa2c49cee16a5e5bdefde931107dc1fae9f7773e3&nbsp;</li>
<li>Token Type: Utility, Governance</li>
<li>Total Supply: 1.103.303.471 DOT</li>
</ul>
&gt;&gt; More: <a href="https://dotscan.com/blog/should-i-invest-in-polkadot-coin-dot-or-not">Should I invest in Polkadot coin (DOT) or not?</a>
<h2>4/ DOT Coin Allocation</h2>
<ul>
<li>The Polkadot project DOT Coin is distributed as follows:&nbsp;</li>
<li>Polkadot Auction: 50%</li>
<li>Web3 Foundation: 30%</li>
<li>Further Pre-Launch Distributions: 20%</li>
</ul>
<h2>5/ Purpose of use and how to own DOT Coin</h2>
DOT is used with 4 main functions as follows:
<ul>
<li>Governance: participate in project management and transaction development</li>
<li>Staking: help create consensus mechanism</li>
<li>Rewards: rewards for contributions and efforts to the project</li>
<li>Bondings: a proof-of-stake (PoS) method to be able to link DOTs and create new Parachains.&nbsp;</li>
<li>So how can investors own DOT Coin?</li>
</ul>
There are 2 basic ways for you to own this Coin, which are:&nbsp;
Option 1: Buy directly on brokers that have listed this coin, typically Binance, Houbi, Kucoin, PancakeSwap, FTX, Gate.io, etc.
Method 2: Participate in the development of Polkadot network by Staking and will receive the reward of DOT coins.&nbsp;
Polkadot substrate, Polkadot Scan, <a href="dotscan.com">Scan Polkadot</a>, Dotscan, Dot Scan

Compare Polkadot and Ethereum 

<h2 style="text-align: justify;">1. What are tokens?</h2>
In fact, the token is also a cryptocurrency. But this coin was encrypted and issued by projects called ICO. It can be said that the token is developed on the basis of the Blockchain of a certain coin. Therefore, it is used in a predefined manner.
Mostly, Ethereum is the foundation to build tokens with ERC-20 standard. Besides, there are some Tokens that are also based on WAVES, ICON, NEO and even Bitcoin.
It can be seen that the token is used as a method for internal payments in that project, and has the same function as the coin. You can also understand that token is the capital of a company, token holders can participate in the system network and access the project's functions.
Thanks to that, more and more people are interested in and investing in tokens. There are some prominent tokens that are storming the market such as Tether, Ox, Zilliqua, Binance Coin, OmiseGO,...
Tokens are divided into 2 main categories including Security Tokens and Utility Tokens:
Security Tokens are also known by many as security tokens, they are a form of shares issued by ICOs. Thereby, you can enjoy the dividends according to the proportion of shares that you own. Besides, when you own a certain number of tokens, you also have the right to decide on some important work in the project.
Utility Tokens are an extremely utility token. Unlike Security Tokens, this type of token is not used for direct investment, it has the effect of performing functions in the project such as discounting, payment, voting to be able to serve a certain project in the market. .
There are also a number of other tokens such as Platform Tokens, Transactional Tokens, Governance Tokens, Equity Tokens, Payment Tokens, etc. Each token has different features and uses, so users need to be smart. in use.
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1669115910999.png" />
<h2 style="text-align: justify;">2. What is Coin?</h2>
Coin is considered a cryptocurrency that has been built on a separate Blockchain platform that is open source. They work heterogeneously and data will be stored collectively, any user can easily join its network.
Coin was born with the meaning of solving problems related to payment, finance, security and application development&hellip;
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1669115992055.png" />
Coins will be divided into 2 types including Bitcoin and Altcoin. In it, Altcoin is the common name for all non-Bitcoin coins. On the market today, there are some typical coins such as: Cardano, Ethereum, Beo, Bitcoin, Stellar, ...

What are tokens? What is coin?

<h2 style="text-align: justify;">1. What is Polkadot coin?</h2>
Polkadot is considered as one of the blockchains capable of competing with the cryptocurrency ecosystem such as Ethereum (ETH), Cosmos (ATOM) and EOSIO (EOS). Polkadot was born later than other cryptocurrencies (2020), so it will have more advanced technical features. Its goal is to overcome the disadvantages of previous cryptocurrencies.
<img style="display: block; margin-left: auto; margin-right: auto;" src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1669013655581.png" alt="Should I invest in Polkadot coin (DOT) or not? 2" width="700" height="394" />
<h2 style="text-align: justify;">2. Should I invest in Polkadot coin (DOT) or not?</h2>
DOT coin is currently being evaluated as one of the fastest growing altcoins with the most potential for future growth, for the following main reasons:
Investor sentiment on the future of DOT coin is quite positive: Fortunately, DOT has a very strong community, and they believe in the future of DOT. A coin that receives the support of a large number of people from the community will be a great springboard for it to develop in the long term.
DOT coin is undervalued: With the breakthrough technologies that Polkadot brings, while the current trading price is at $ 0.0000009 , it is possible that DOT is very cheap. And this also makes many investors believe that buying DOT at this price range is extremely appropriate.
Polkadot owns sustainable technology: There is concern that a possible ETH 2.0 upgrade will render most of the &ldquo;Ethereum Killer&rdquo; blockchains useless. But this is not the case with Polkadot as it offers more than scalability. It is cementing its position as the blockchain for other blockchains by providing a link through which all blockchains can share data. This means Polkadot will still be scalable with ETH 2.0, and that's why DOT is becoming a pretty good coin right now.
Even so, Polkadot coin (DOT) cannot avoid some major challenges as it is facing stiff competition with many other platform coins . However, you can fully expect DOT, because these will be the factors that can drive the price of DOT up in the future:
Adoption of other blockchains : Polkadot wants to be the blockchain for other blockchains. As more and more blockchains start using Polkadot service, the price of DOT coin will continue to increase.
More explosive technologies : Platform coins are always competing in terms of technology. Currently, Polkadot's technology is quite good, but if in the future it has more upgrades and updates to not only make interaction easier but also improve efficiency, then surely the price of DOT will be appreciated. price is higher than the current one.&nbsp;<a href="https://dotscan.com/">Polkadot Scan</a>
<h2 style="text-align: justify;">3. What coins does the Polkadot ecosystem include?</h2>
There are more than 100 coins created from the Polkadot ecosystem. The most prominent ones can be mentioned as tokens: DOT, LINK, KSM, COMP, ZRX, ANKR, REN, ONT, MOVR, TRAC, CELR, OCEAN, REEF, EWT, etc. You can see a list of all coins belongs to Polkadot ecosystem on coinmarketcap
Cryptocurrency Market Recovery : The rise in the price of the Polkadot token &ndash; like all cryptocurrencies &ndash; will to the greatest extent be affected by prevailing market conditions. In this case, if the cryptocurrency market recovers, Polkadot girls will surely increase as well.

Should I invest in Polkadot coin (DOT) or not?

<h2 style="text-align: justify;">1. Advantages</h2>
- This network is capable of processing multiple transactions in parallel at the same time.
- There is a high degree of specialization.
- Ability to interact and communicate with cross-chain data.
- You can manage your own network.
- Easily upgradeable.
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1669000322002.jpg" />
<h2 style="text-align: justify;">2. Disadvantages</h2>
The biggest disadvantage of the Polkadot project ( DOT coin ) is the problem of the operation time being not long enough to optimize the results. However, investors can still see the promising potential of DOT coin in the future. It is the ability to provide efficient interoperability between blockchains, while highlighting the benefits of sharding.
Sharding is a type of partition to divide the database into smaller parts for easier management. Performing sharding replaces transaction verification by all nodes on the network.
Then, Sharding will receive thousands of transactions per second instead of waiting to go through a series of cumbersome processes. However, in addition to its significant benefits, Sharding also brings quite large risks. The reason is because it will have to remove security features to increase the scalability of the system.
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1669000329476.jpg" />
Although the Polkadot (DOT) project has been in development for several years. However, to talk about catching up with other famous projects in a short time is still not possible. Besides, some investors are also apprehensive about sharding.
&nbsp;
Because of the fact, this operation has the potential to cause holes in the chain. In addition, then Sharding will also take the position of fully manipulating the chain. This means that, when one node fails, the whole chain system will also be severely damaged.

Advantages and disadvantages of the Polkadot project

<section>
<div>
Polkadot, like many post-Bitcoin cryptocurrencies, is both a token that can be&nbsp;bought or sold via exchanges like Coinbase&nbsp;and a decentralized&nbsp;protocol.
The Polkadot&nbsp;protocol&nbsp;is designed to allow unrelated&nbsp;blockchains&nbsp;to securely talk to each other, so that value or data can flow between, say, the&nbsp;Ethereum&nbsp;and&nbsp;Bitcoin&nbsp;blockchains without any intermediary. It&rsquo;s also designed to be speedy and scalable, via the use of many parallel blockchains (or &ldquo;parachains&rdquo;) that take much of the processing demand off of the main blockchain.&nbsp;&nbsp;&nbsp;
The <a href="https://dotscan.com/">Polkadot</a> token (DOT) serves two main functions within the Polkadot network: it&rsquo;s a governance token, which allows holders to have a say in the future of the protocol, and it&rsquo;s used&nbsp; for staking, which is the way the Polkadot network verifies transactions and issues new DOT. DOT can be bought and sold on exchanges like Coinbase as part of your investment strategy.
</div>
</section>
<section>
<div>
<h2>How is Polkadot structured?</h2>
The Polkadot network includes a main blockchain called the &ldquo;relay chain&rdquo; and many user-created parallel chains (or &ldquo;parachains&rdquo;). It also has a connecting layer, or &ldquo;bridge,&rdquo; that allows value and data to be transferred between most blockchains &mdash;&nbsp;and can even be used to connect to non-blockchain databases.
</div>
</section>
<section>
<div>
<h2>How does Polkadot work?</h2>
The reason Polkadot can process all of this information is because the many parachains do a lot of the heavy lifting for the main relay chain. As a result, the Polkadot network can process more than&nbsp;1,000 transactions per second, compared to about 7 for Bitcoin and 30 for Ethereum. As the network grows and more parachains are added, Polkadot should get even faster, with speeds that could hit a million transactions per second.
Or as the infrastructure experts at Bison Trails&nbsp;describe&nbsp;it:
The relay chain is responsible for achieving consensus and transaction delivery ... among parachains. Parachains &hellip; are application-specific blockchains within the Polkadot network. Each parachain is an entire blockchain in and of itself, with its own logic and features.
</div>
</section>
<section>
<div>
<h2>How does staking work on Polkadot?</h2>
Polkadot uses a&nbsp;proof-of-stake&nbsp;consensus mechanism (as opposed to the proof-of-work system Bitcoin uses) to secure the network, verify transactions, and create and distribute new DOT. There are several ways DOT holders can interact with staking system &mdash;&nbsp;depending on how much time, technical knowledge, and money they want to devote.&nbsp;
<ul>
<li>
Validators&nbsp;do the most work &mdash; it&rsquo;s a major commitment, and requires technical knowhow.&nbsp;To&nbsp;become a validator, you need to run a node (one of the computers that makes up the network) with little to no downtime&nbsp;and&nbsp;stake a substantial amount of your own DOT. In exchange, you get the right to verify legitimate transactions, add new &ldquo;blocks&rdquo; of transactions to the relay chain, and potentially earn newly created DOT, a cut of transaction fees, and tips. (On the flip side, you can also forfeit some or all of your staked DOT for acting maliciously, making a mistake, or even having technical difficulties).&nbsp;
</li>
<li>
Nominators&nbsp;allow regular investors to participate in staking indirectly. You can delegate some of your DOT to a validator you trust to behave according to the rules. In exchange, you get a cut of DOT earned by your chosen validators. Be careful with who you choose: you also can forfeit some of your stake if your validator breaks the rules.
</li>
<li>
There are also two specialized roles that typically require less of a commitment than becoming a full validator but more technical skill than is required to be a nominator:&nbsp;Collators&nbsp;keep track of valid parachain transactions and submit them to the relay chain validators.&nbsp;Fishermen&nbsp;help find and report bad behavior across the network.&nbsp;
</li>
</ul>
By staking and participating in the network via any of the above roles, you may be able to receive DOT rewards. DOT holders also have a say in the governance of the network and are able to vote on proposed software upgrades.
</div>
</section>
<section>
<div>
<h2 style="text-align: justify;">Who created Polkadot?</h2>
Polkadot&rsquo;s developers include Ethereum co creator Gavin Wood. It launched on May 26, 2020. The nonprofit Web3 Foundation is the primary research organization that maintains Polkadot&rsquo;s open-source code.&nbsp;
Want more information?&nbsp;For a lot more detail about how Polkadot works &mdash;&nbsp;as well as tips for participating in Polkadot staking &mdash; check out&nbsp;this explainer&nbsp;from Bison Trails.
</div>
</section>

What is Polkadot (DOT)?

You can look up your Polkadot (or Kusama) transaction history on block explorers like e.g. <a href="https://dotscan.com">Dotscan</a>. In this article you will learn how to do that.

Where can I see the transaction history of my Polkadot account?

If you cannot find your DOT address on a block explorer, it has either not received the minimum amount of DOT required to activate the account yet, or its balance dropped below that amount and it was reaped (deactivated).
This amount is called the existential deposit (ED) and is currently set at 0.0000333333 KSM for the Kusama network and 1 DOT for Polkadot.
You can (re-)activate a reaped account by sending at least the ED to it. This will make it findable on block explorers again.

I can't find my account on the Polkadot network

I can't find my account on the Polkadot network!

Yes. In fact you can use the same account on most Substrate chains (but not all, since there are exceptions - check the video at the end of the article for a detailed explanation).
Your account uses the same public and private keypair for all chains in the background. Only the address format changes from one chain to the other. To learn more about the accounts and the address formats you can check this&nbsp; <a href="https://wiki.polkadot.network/docs/learn-accounts" target="_blank" rel="noopener noreferrer">wiki article</a>&nbsp;and on the same page you can find&nbsp;<a href="https://wiki.polkadot.network/docs/learn-accounts#address-conversion-tools" target="_blank" rel="noopener noreferrer">conversion tools</a>&nbsp;that convert between address formats on different chains.
To enable your account to be visible across all Substrate chains follow these steps.
If your account is in the Polkadot extension
<ol>
<li>Open the extension</li>
<li>Click on the three dots next to your account</li>
<li>Select "Allow use on any chain" in the drop-down menu</li>
<li>Refresh the Accounts page on Polkadot-JS UI</li>
</ol>
&nbsp;
<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1662802884442.png" alt="" width="281" height="233" />
<hr />
If your account is on Polkadot-JS UI
<ol>
<li>In the&nbsp;<a title="Accounts page" href="https://dotscan.com/account">Accounts page</a>&nbsp;click on the three dots next to your account.</li>
<li>Disable the "only this network" switch</li>
</ol>
&nbsp;
<div><img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1662802971967.png" alt="" width="285" height="265" /></div>
You will notice that a yellow warning mark appears next to your account, notifying you that the account is available on all chains.<img src="https://dotscan-public.s3.ap-southeast-1.amazonaws.com/blogs/1662803031356.png" alt="" width="308" height="241" />
&nbsp;
IMPORTANT FOR LEDGER ACCOUNTS: You can allow a Ledger account on all chains only if it has been added directly on the Polkadot-JS UI. Ledger accounts added in the Polkadot extension cannot be used on all chains. However, it is strongly recommended that you use a Ledger account only on one network, otherwise you may lose access to your funds. The only exception are Kusama accounts which can be used on Statemine and vice versa.
<hr />
Should I use the same account across different chains?
That depends on what you're using your account for.&nbsp;Here are some advantages and disadvantages to help you decide:
Advantages
<ol>
<li>You don't have to create different accounts for each network, which means you don't have several mnemonic phrases and JSON files to keep track of.</li>
<li>It may be necessary to do it if you participated in crowdloans, in order to be able to manage your crowdloan rewards, since these are usually sent to the account you participated with.</li>
</ol>
Disadvantages
<ol>
<li>It can get confusing Tip:&nbsp;The account icon remains the same across all chains!</li>
<li>It creates a single point of failure. If your mnemonic phrase for your account is compromised, your tokens across&nbsp;all&nbsp;chains can be stolen.</li>
<li>Ledger accounts should be used only on one network!&nbsp;The only exception are Kusama accounts which can be used on Statemine and vice versa.</li>
</ol>
<hr />
We also have this educational video that sums up what's been discussed in this article:
<iframe src="https://www.youtube.com/embed/F7ZFyeky9rQ" width="640" height="360" frameborder="0" sandbox="allow-scripts allow-forms allow-same-origin allow-presentation" allowfullscreen="allowfullscreen"></iframe>

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