Add Gasless DNSSEC blog post (#56)

content/014_gasless_dnssec/meta.json

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+{
+  "slug": "gasless-dnssec",
+  "title": "Gasless DNSSEC on Mainnet",
+  "description": "DNS names can now be ENS-enabled for free, without any onchain transactions.",
+  "date": "2024-01-29",
+  "tags": [],
+  "authors": ["gregskril.eth"]
+}

content/014_gasless_dnssec/readme.mdx

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+Starting today, ENS can connect with any DNS domain<sup>1</sup> for free.
+
+## History
+
+ENS has always been complementary to existing internet infrastructure. For years, DNS names could be imported into ENS without a protocol fee, but incurred hefty Ethereum gas fees, in some cases reaching 0.5 ETH.
+
+The reason behind the high fee is that a large amount of data (DNSSEC proof) needed to be saved to the Ethereum blockchain to prove ownership of a domain. While this remains an option, interacting with the blockchain is no longer a required step in crypto-enabling a DNS name.
+
+## How It Works
+
+Gasless DNSSEC is powered by [CCIP Read (EIP-3668)](https://eips.ethereum.org/EIPS/eip-3668), an application-level standard for Ethereum smart contracts to fetch and verify offchain data. It was authored by Nick Johnson, the Founder and Lead Developer of ENS Labs.
+
+In [EP5.1](https://www.tally.xyz/gov/ens/proposal/4208408830555077285685632645423534041634535116286721240943655761928631543220), ENS DAO approved the activation of a new smart contract that implements CCIP Read at the DNS TLD level. Having CCIP Read at the TLD level means that DNS records can be verified on-demand via an offchain gateway. The result is a free way to use DNS domains in the ENS ecosystem.
+
+## How To Use It
+
+Configuring your DNS name to work with ENS can be accomplished in a few simple steps:
+
+- Enable DNSSEC
+- Add a TXT record in the format `ENS1 <ens-resolver-address>`
+- Done! Now your DNS name can be resolved according to whichever ENS resolver you specified. [Try it here](https://ens-resolution.vercel.app/).
+
+For the easiest experience, we've created a special resolver that can read an Ethereum address from the same TXT record. The format is `ENS1 0x238A8F792dFA6033814B18618aD4100654aeef01 <eth-address>`. [Learn more on our support docs](https://support.ens.domains/en/articles/8834820-offchain-gasless-dnssec-names-in-ens#h_94b4356040).
+
+---
+
+<sup>1</sup> Any DNS name where the TLD supports [DNSSEC](https://www.icann.org/resources/pages/dnssec-what-is-it-why-important-2019-03-05-en)
+and uses the official ENS DNSRegistrar smart contract.