Best Free DNS Lookup Tools of 2025

EasyDMARC is a cloud-based DMARC solution for securing domains and email infrastructure, protecting organizations against phishing attacks, and more: Brand Protection Our email protection SaaS platform stops hackers from sending phishing emails to customers from company names, gaining access to accounts, and stealing personal information. Increased Email Deliverability EasyDMARC informs receiving mail servers that emails are legitimate and authentic, ensuring they’re delivered to the inbox instead of blocked or sent to spam. Visibility Into Cyber Threats EasyDMARC helps to successfully monitor every aspect of your email authentication and enforce effective protection from phishing attacks thanks to its advanced reporting capability. Business Email Compromise (BEC) Protection Most people have seen emails pretending to be from the CEO, CFO, or another executive in their organization. EasyDMARC prevents business email compromise and keeps your company reputation on the highest level․ EasyDMARC’s deliverability tool, EasySender, covers all the aspects of email deliverability. The variety of features on the platform cover email list verification, mailbox warmup, and inbox placement.

WebSniffer is a tool that allows you to see the HTTP headers that are sent when a web page is requested from a server. It can be useful for debugging and understanding how a web page is being served to your browser. It can also be used to see if a particular request is being made, or to examine the headers and other information that is being sent as part of a request. The WebSniffer online platform also offers a range of featuresIt can perform domain name and IP address lookups, and reverse DNS and IP lookups. WebSniffer can also provide users with information about their own IP address and user agent. Additionally, the platform offers a password generator that can create secure, random passwords.

KeyCDN stands out as a cutting-edge content delivery network designed with future advancements in mind. Within just a few minutes, you can begin distributing content to your audience at extraordinarily rapid speeds. Each of our edge servers is expertly designed, featuring an advanced TCP stack and complete SSD coverage, among other enhancements. Regardless of the size of your account, you can take advantage of all our features, including HTTP/2, Brotli, and TLS 1.3, to elevate your content delivery. Our network employs IP anycast along with latency-based routing technology to ensure top-tier performance. To get started, simply add a domain that you wish to enhance. You have the option to make advanced customizations or even implement a personalized subdomain. Seamlessly integrate with any CMS, framework, or bespoke application. Optimize your image performance by lowering the overall size and utilizing next-generation formats, while boosting image delivery speeds through our extensive global network of premium edge locations. Choose KeyCDN for an unparalleled content delivery experience that meets the demands of modern users.

Palisade is the only DMARC automation solution designed specifically for MSPs. We make managing email security and compliance straightforward by allowing MSPs to oversee multiple domains with ease, simplify authentication processes, and transform detailed DMARC reports into actionable strategies. All through a single pane of glass. Boost efficiency, lower operational costs, and unlock new revenue opportunities while ensuring exceptional email security for your clients.

Whatsmydns.net provides a rapid DNS lookup service that allows users to verify the current IP address and DNS record details of a domain across various nameservers situated worldwide. This platform enables individuals to assess modifications made to both new and existing domains, ensuring that updates are accurate without the hassle of individually querying remote servers. Consequently, it offers immediate feedback on how DNS records are being resolved by users across the globe for websites, emails, or other internet services. While many operating systems come equipped with DNS diagnostic tools, these can often be challenging for those who lack technical expertise to navigate. This is precisely why the DNS checker at whatsmydns.net was developed, simplifying the process of monitoring DNS propagation for everyone. Additionally, the user-friendly interface ensures that anyone can effectively troubleshoot DNS issues with ease.

Deep Dig is a sophisticated DNS lookup tool that features DNS trace capabilities and maintains a history of queries. This utility enables users to swiftly retrieve DNS records by simply indicating record types, custom servers, ports, and other parameters, similar to how one would use the dig command line tool. It supports a variety of record types, including A, AAAA, ANY, CNAME, PTR, NS, MX, SOA, and SRV, along with the "-t type" option for queries. Additionally, users can utilize the "+trace" and "+all" options directly in the query or hostname fields. The tool allows for specification of a custom DNS server and port using the "-h host" and "-p port" options, while also accommodating custom DNS server types in the query. It provides automatic DNS query capabilities to local multicast IP addresses and can query Bonjour/mDNS servers as well. Furthermore, Deep Dig supports queries to LLMNR servers and automatically conducts reverse DNS (PTR) lookups when an IPv4 or IPv6 address is entered. As an added feature, it offers automatic identification of the country associated with an IP address or domain name when resolving it. This comprehensive functionality makes Deep Dig an invaluable resource for network administrators and IT professionals alike.

Often referred to as the internet's phonebook, DNS serves the crucial function of converting domain names into IP addresses, enabling browsers to access the required data. Each device connected to the internet, whether it's a laptop or a web server, is assigned a distinct IP address. The DNS Lookup tool from Site24x7 provides a comprehensive list of DNS records associated with the specified domain names, which is particularly useful because it captures any updates to these records in real-time. Furthermore, Site24x7 offers DNS monitoring services that help oversee your Distributed DNS infrastructure effectively. DNS records are essentially text files that store detailed information about a specific domain name, including its associated IP address and any alias names. They also indicate whether a given address functions as an alias or subdomain of a larger domain, and all CNAME records specifically point to a domain rather than an IP address. Understanding these components is essential for managing domain-related tasks and ensuring seamless internet navigation.

Obtain a comprehensive SEO analysis along with a tailored checklist aimed at enhancing your website's performance and achieving top rankings on Google. Regardless of whether you operate a startup, a small to medium-sized business, or an e-commerce platform, Sitechecker is designed to facilitate your ascent on Google without requiring in-depth SEO knowledge or advanced software expertise. If you manage a marketing firm, web development company, or design agency, Sitechecker enables you to offer SEO services to your clients without needing to be an expert or hire skilled personnel. For marketers, designers, and developers alike, Sitechecker streamlines the process of boosting your website’s SEO without necessitating specialized knowledge. Perform a technical SEO audit, whether you are launching a new site, migrating an existing one, or seeking to enhance your search engine performance. Additionally, Google Search Console and Google Analytics provide crucial insights regarding your website, yet they do not offer actionable recommendations based on that data. By utilizing Sitechecker, you can bridge that gap and implement effective strategies for optimization.

Simplifying DNS checks. With DNS Check, you can effortlessly monitor, share, and troubleshoot your DNS records. You can keep an eye on DNS records and name servers for any alterations or lookup failures, receiving notifications whenever a change occurs. You have the option to import your complete zone file or selectively monitor only the records that matter most. For sharing purposes, you can request updates on DNS records by providing a link that indicates which records are accurate and which are not, with alerts for any detected updates. Troubleshooting DNS issues is a breeze; if something malfunctions, our DNS checker will help you determine if a DNS problem exists and guide you on what needs fixing. Central to DNS Check is the DNS record checking tool that evaluates the DNS records you input against the responses from DNS servers. If a problem arises, this tool allows for quick identification of issues, including unresponsive name servers and incorrect IP addresses being returned. Additionally, our service aims not only to identify issues but also to empower users with knowledge on how to effectively resolve them.

Engineered for optimal speed, you will experience seamless browsing without any interruptions. We are committed to providing everyone with access to an unrestricted resolver at no cost. Our resolvers exclusively provide uncensored data. DNS.WATCH stands for the principle of freedom. We operate a range of DNS resolvers that are completely free to use. Since their inception in 2014, our resolvers have been consistently maintained. We gather statistics from our resolvers every few minutes, reflecting the total number of answer codes and queries from resolver1.dns.watch and resolver2.dns.watch, typically displaying data from the last five minutes. No entity should dictate which websites are accessible to us or control the loading speed of those sites. By utilizing our services, you can have confidence in not needing to rely on your ISP or question their intentions. With our resolvers, you can be assured that your DNS queries remain free from any form of censorship, enhancing your online experience and privacy.

DNSdumpster.com serves as a complimentary tool for domain research, allowing users to identify hosts associated with a particular domain. For security assessments, uncovering visible hosts from an attacker's viewpoint is crucial. The swift identification of the attack surface is vital for those engaged in penetration testing or pursuing bug bounties. Moreover, network defenders gain numerous advantages through passive reconnaissance, as it aids in shaping their information security strategies. By grasping network-based OSINT, IT professionals can enhance their ability to operate, evaluate, and manage networks effectively. Integrating our attack surface discovery into your vulnerability assessment can significantly reduce both time and potential frustrations. Unlike traditional methods, we refrain from employing brute force subdomain enumeration, opting instead for open source intelligence resources to extract related domain information. This data is subsequently organized into a practical resource that proves valuable for both attackers and defenders of systems exposed to the internet. In summary, this tool not only streamlines the process but also empowers users to make informed security decisions.

NsLookup.io serves as an online DNS client that features an intuitive interface, enabling users to query DNS records associated with specific domain names effortlessly. Through this platform, you can access various DNS records for any website, such as A, AAAA, CNAME, MX, SOA, and more. While NsLookup.io itself does not retain any cached DNS responses, the DNS servers it interacts with often provide cached record sets. Consequently, users can expect prompt and efficient results, making it a reliable tool even on slower internet connections. Furthermore, this capability enhances the overall user experience by minimizing wait times for information retrieval.

Checking DNS propagation is essential when you either change your web host or launch a new site and update your domain's DNS name servers at the registrar. This tool conducts a complimentary DNS lookup for your IP address, verifying whether your website has fully propagated across the globe. To expedite DNS propagation, it's crucial to choose a reliable provider as previously mentioned. Additionally, lowering the TTL (Time to Live) of your DNS zone can enhance propagation speed. When transferring your website and making DNS adjustments, you want to ensure the switch occurs as swiftly as possible. It's advisable to adjust your current TTL to a shorter duration before the migration; a value of 600 seconds (or 10 minutes) is typically effective, and this adjustment should be made at least 24 hours in advance. Just 10 minutes prior to the actual changes, you can further reduce it to a minimal setting of 60 seconds (or 1 minute), ensuring that your new settings take effect quickly. By planning ahead and optimizing these settings, you can facilitate a smoother transition for your website.

DNSInspect is designed to identify issues with domains by conducting thorough assessments. It evaluates your name, mail, and web servers for prevalent problems and generates a detailed report. The Domain Name System (DNS) can be complex and challenging to navigate. This tool was developed from our accumulated knowledge over time, with invaluable input from users. We are committed to enhancing its capabilities continuously; following the recent addition of IPv6 support, our upcoming objective is to incorporate DNSSEC support as well. This ongoing development reflects our dedication to providing a comprehensive solution for DNS-related challenges.