Cloudflare checker Open a web browser on a configured device (smartphone or computer) or on a device connected to your configured router. users by default. A web-based Cloudflare proxy checker built with Node. Obtaining the Cloudflare DNS servers while performing the Namer server record check does not mean that Cloudflare is the authoritative name server for that domain. stack crawler Stackcrawler is a free website platform checker that helps you to find out what stack a website is using. So whenever you change DNS records, you can check whether they have propagated yet by doing a DNS lookup. Aug 13, 2024 · You need to remove any pre-Cloudflare DS records at your registrar to update your authoritative nameservers. Cloudflare provides performance and security to website owners via its intelligent global network. That appears to coincide with the first screenshot which also indicates you may be using a DNS resolver which isn’t 1. Apr 29, 2019 · Rather surprised after using FF with the CloudFlare DNS setting for several months, and finding my Linux /etc/hosts “black hole” settings (0. Aug 13, 2024 · You can configure alerts to notify you of any changes in your health check status. Health Checks status notification. Prueba tu conexión de red y obtén información utilizando la herramienta de prueba de velocidad de Cloudflare Probar mi conexión speed. Waterfall from India In February 2020, the Mozilla Firefox browser began enabling DoH for U. 0% of those websites are behind Cloudflare: that's a problem. Cloudflare DMARC Management (beta) helps you track every source that is sending emails from your domain and review Domain-based Message Authentication Reporting and Conformance (DMARC) ↗ reports for each source. S. This means that whenever a user visits a website on Cloudflare that has ECH enabled, intermediaries will be able to see that you are visiting a website on Meet one of the gatekeepers of the modern internet. If you need an SSL certificate, check out the SSL Wizard. Why register a domain name with Cloudflare? Cloudflare Registrar offers a reliable, cost-effective, and secure way to register your domain. Oct 30, 2024 · For FAQs and other troubleshooting information, refer to the following resources: Dec 2, 2019 · That page says you can connect to 1. It is a protocol extension in the context of Transport Layer Security (TLS). Joined: Mar 16, 2012 Posts: Aug 13, 2024 · Open your Cloudflare dashboard and select your account. The following CDNs send a response header that includes the cache status: Amazon CloudFront, Azure CDN (Micrososft), Bunny CDN, CDN77, CDNetworks, Cloudflare, Fastly, Gcore, ImageEngine, KeyCDN, Kingsoft Cloud, Medianova and OVHcloud. Mar 15, 2023 · Cloudflare is excited to announce early access to a new, free tool — the Radar URL Scanner. To do this. 1, you can check if you are correctly connected to Cloudflare's resolver. If you are using Cloudflare Radar, Gateway, or 1. , the estimated geolocation, ASN associated with your Speed Test, etc. 100. With transparent pricing, you pay only the wholesale cost without hidden fees or markups. A number of organizations, including Cloudflare, offer website speed tests. Click on “server” to access the drop-down menu and choose a server against which you’d like to check DNS records: Google; Cloudflare; Quad9 If you are using Cloudflare to connect to your Content Policy using Cloudflare WARP (Mac/Windows), Cloudflare One (Android/iOS), or manually configured (router or manual settings), this article will help you ensure your device is using Cloudflare's DNS. Provide categorization feedback for a domain. Cloudflare's RPKI Portal provides tools for validating and securing internet routing using the Resource Public Key Infrastructure (RPKI) protocol. Select the DNS > Records tile. Follow these steps to use our domain DNS lookup tool for a quick DNS record check: Enter Domain Name. If the tested URL does not point to one of those CDNs, the CDN Performance Checker can't show Cache Status. When a health check is configured, it can be run across the different regions on the Cloudflare infrastructure, enabling you to see the variation in latency around the world for specific Health Checks. com: Jun 12, 2020 · Cloudflare has over 200 edge locations around the world making it one of the largest Anycast networks on the planet. This allows you to view the health of your origin servers even if there is only one origin or you do not yet need to balance traffic across your infrastructure. Perfect for developers and security professionals looking to elevate their website security assessments. Select your domain from the dropdown. You can create multiple file checks for each operating system you need to run it on, or if you need to check for multiple files. 36 (KHTML, like Gecko) Chrome/109. To edit an existing record, select Edit for the appropriate record. Those include being able to share the results with a colleague or friend, and the ability to see multiple record types at the same time, without querying Explore the latest Internet traffic anomalies and verified outages. DNS management for your domain displays. " Learn how to check if Cloudflare is active on your website and enable abuse content protection. Cloudflare Speed Test Copy link. 1 for Families and see a domain that you believe is miscategorized, you can use this list to propose new categories. Enter https://1. Workers is a serverless application platform built on top of Cloudflare's network. Check your browser for security, privacy, and ESNI usage with this free ESNI checker tool. About this project Browser caching, DNS propagation and the like can make it tricky to tell if Cloudflare is enabled correctly. Aug 13, 2024 · The File Check device posture attribute checks for the presence of a file on a device. Apr 11, 2025 · Once you have created a DNS policy to block a domain, you can use either dig or nslookup to see if the policy is working as intended. Cloudflare Detection (Headers, JS Challenge, CAPTCHA, HTML Analysis) Real IP Extraction (if not masked) Colorized & Structured Output Status Code Highlighting (Green 🟢, Yellow 🟡, Red 🔴) Multi-Threaded for Speed Save Results to a File (-o output. Global DNS Checker - How to check DNS propagation. Enter any domain name (dnschecker. cloudflare. "The great thing about Cloudflare Bot Management solutions is I don't need to spend time fine-tuning. With Cloudflare's URL Scanner, you have the ability to investigate the details of a domain, IP, URL, or ASN. When you publish a project to Cloudflare Workers, it's immediately distributed across 300+ cities around the world, meaning that regardless of where your users are located, your Workers application will be served from a nearby Cloudflare server, with extremely low latency. Check if your ISP is implementing BGP safely with RPKI. g. Several other browsers also support DoH, although it is not turned on by default. The only thing it knows is whether you're using Cloudflare DoH services specifically. The way this checker works is that Cloudflare has set up its servers to respond differently to certain domains depending on how the query was made. 36 CloudflareObservatory/1. Feb 28, 2020 · Setting up Cloudflare Page rules to cache HTML and other content for a website How To Manually Check If Cloudflare Cached a Resource. In this case, the email will be rejected or marked as spam. 0 IP assigned to host name) were ignored for Facebook (among a few thousand others in my host file I presume; not checked yet). Right-click on a page and click on “Inspect Element”. Health Checks are a key part of our load balancing service because Apr 25, 2025 · To better understand Internet usage around the world, use Cloudflare's URL Scanner. Underlying causes included government-directed shutdowns, power outages, hurricane damage, terrestrial and submarine cable cuts, military action, and more. Wait, doesn't HTTPS use TLS for encryption too? The third quarter of 2024 was particularly active, with quite a few significant Internet disruptions. We would like to show you a description here but the site won’t allow us. Provide us a URL, and our scanner will compile a report containing a myriad of technical details: a phishing scan, SSL certificate data, HTTP request and response data, page performance data, DNS records, whether cookies are set to secure and HttpOnly $ cf-check -h Usage of cf-check:-c int Set the concurrency level (default: 20)-cf Show CloudFlare only-d Print domains instead of IP addresses Workaround The goal is that you don't need to do a port scan if it's proven that the IP is owned by Cloudflare. Mar 22, 2025 · 🚀 Features. Encrypted SNI is a feature that encrypts the Server Name Indication (SNI) extension in TLS to enhance user privacy and security. Imperva/Incapsula, AWS Captcha, CyberSiara, Akamai Web / Bmp, Cloudflare Turnstile Does it use Cloudflare? Find out if a website uses Cloudflare by adding it to the field below. 1/help ↗ on the browser address bar. Test if your proxies can bypass Cloudflare's protection through an easy-to-use web interface. If the site was using Cloudflare, private data on it might have been leaked since 2016-09-22! Learn more about Cloudbleed on the Google issue tracker or the Cloudflare blog. Perform a quick DNS propagation lookup for any hostname or domain, and check DNS data collected from all available DNS Servers to confirm that the DNS records are fully propagated. org) in the search bar for DNS record lookup. 1 - No. Before proceeding with manual troubleshooting steps, you can verify your connection to automatically gather relevant information. If the domain is using Cloudflare's DNS services, then Cloudflare's name servers will be listed as the authoritative name servers in the NS Lookup results. This will disable DNSSEC and allow Cloudflare to resolve your domain name. Additionally, Cloudflare prioritizes security, providing free features like DNSSEC to protect against domain hijacking. js, JavaScript, and Socket. Our lives are 1000 times easier while still ensuring our sites are both safe and fast for our customers. Dec 11, 2019 · Our first new tool is Standalone Health Checks, which will notify you as soon as we detect problems at your origin server -- without needing a Cloudflare Load Balancer. ESNI has not yet been published as an official RFC, or Internet standard, but a draft RFC is in the works. Mar 16, 2012 · Cloudflare ESNI Checker. Mar 14, 2025 · Stop brand impersonation. . If the IP address is not listed in the SPF record, the SPF check fails. Extending Cloudflare Radar’s security insights with new DDoS, leaked credentials, and bots datasets For Security Week 2025, we are adding several new DDoS-focused graphs, new insights into leaked credential trends, and a new Bots page to Cloudflare Radar. Cloudflare's URL Scanner is available in the Security Center of the Cloudflare dashboard, Cloudflare Radar, and the Cloudflare API. 0% of the top 250 most visited websites in the world support ESNI:. com ¿El BGP ya es seguro? Sep 25, 2024 · ECH stands for Encrypted Client Hello. There are of course more use cases for online nslookup, instead of using a CLI. Aug 13, 2024 · The values for Interval and Check regions, because decreasing the Interval and increasing Check regions may increase the load on your origin server. 1. May 1, 2025 · If your domain is not yet active on Cloudflare or you want to measure the before and after improvements of using Cloudflare, Cloudflare recommends using the following third-party tools: GTmetrix ↗; DebugBear ↗; Lighthouse ↗; WebPageTest ↗; If you use these third-party tools, you should do the following to test website speed: Cloudflare Web Analytics does not use any client-side state, such as cookies or localStorage, to collect usage metrics. Jan 24, 2025 · This guide will help you diagnose and resolve common issues with Cloudflare's DNS Resolver. We also don’t “fingerprint” individuals via their IP address, User Agent string, or any other data for the purpose of displaying analytics. - cmalf/proxy-cloudflare-checker. More Information About the SSL Checker DNS Checker provides a free DNS propagation check service to check Domain Name System records against a selected list of DNS servers in multiple regions worldwide. Sep 20, 2024 · A Health Check is a service that runs on Cloudflare’s edge network to monitor whether an origin server is online. Feb 4, 2025 · Entiende la información acerca de la seguridad, el rendimiento, la tecnología y la red de una URL con un informe que se puede compartir públicamente Cloudflare Cache Status. Check out our local proxy checker: HTTP, Socks4 & Socks5 proxy support. Many speed tests are able to identify individual elements of a webpage that are slowing the page down, in addition to providing performance metrics. Test my ISP isbgpsafeyet. A Health Check is a service that runs on our edge network to monitor whether your origin server is online. 1 however higher up on the page (the first check) says connected to 1. net is a free online tool that lets you quickly and easily perform a DNS lookup to check DNS propagation and see information of any domain from DNS servers located in many countries all around the world. If you want to be able to check for this manually, you can visit a URL in your web browser and check the headers manually. ECH encrypts part of the handshake and masks the Server Name Indication (SNI) that is used to negotiate a TLS session. May 9, 2025 · For IPv4 Cloudflare Observatory tests originate from ASN 396982 and are generated with the following user agents: Mozilla/5. To use the SSL Checker, simply enter your server's public hostname (internal hostnames aren't supported) in the box below and click the Check SSL button. By no means affiliated with Cloudflare, Inc - all relevant logos and trademarks belong to Cloudflare, Inc. 0 Mobile Safari/537. First, go to dnsleaktest. Retries , which specify the number of retries to attempt in case of a timeout before marking the origin as unhealthy. DNS queries from the Firefox browser are encrypted by DoH and go to either Cloudflare or NextDNS. Using CMD. Feb 28, 2025 · This analytics behavior reflects that Cloudflare must check the origin web server for revalidated cache requests before returning a result from cache. Page 1 of 2 1 2 Next > Overkill Registered Member. Cloudflare uses your IP address to estimate your geolocation (at the country and city levels) and to identify the Autonomous System Number (ASN) associated with your IP address. IO. Mar 5, 2022 · The Cloudflare checker has no way of knowing whether you're using DNS over HTTPS or not in general. Cloudflare shares anonymized measurement information (e. beacon, and cf_cookie. 0 (Linux; Android 11; moto g power (2022)) AppleWebKit/537. After making your changes, select Save. Who is it for? Customers who want to be warned about changes to server health as determined by health checks. Discussion in 'privacy general' started by Overkill, Jan 3, 2019. For example, if you created a policy to block example. To add a record, select Add record. DNSViz ↗: A web-based tool for visualizing the status of a DNS zone to understand and troubleshoot the deployment of DNS Security Extensions (DNSSEC). Beyond testing speed, Cloudflare also offers free CDN services, which can boost website performance and reduce latency. The machine learning algorithms just work because Cloudflare has such great data. The graph shows analytics by content-type to portray how different components of your website Cloudflare's RPKI Portal provides a secure platform for managing and validating resource public key infrastructure. com. com, you can do the following to see if Gateway is successfully blocking example. Wait for the page to load and run its tests. Another geeky way of telling if a website banks on a CDN for content delivery is using CMD to query CNAME records. txt) Animated Startup with Your Name Search for JavaScript Variables and Functions: Scan the source code for JavaScript variables and functions specific to Cloudflare: Cloudflare, __cf, cf. ) with our measurement partners as part Sep 17, 2024 · After setting up 1. Cache status graphs help explain why traffic is served from Cloudflare versus the origin web server. Cloudflare's Browser Integrity Check (BIC) looks for common HTTP headers abused most commonly by spammers and denies access to your page. About This Site. 0. 0 If the IP address is listed in the SPF record, the SPF check passes and the email will go through. Select The Server. It also challenges visitors without a user agent or with a non-standard user agent such as commonly used by abusive bots, crawlers, or visitors. Not only was Cloudflare the first major network to support ESNI, but Cloudflare was also instrumental in developing ESNI. This is the system status for the Cloudflare service, both edge network and dashboard/APIs for management. Apr 24, 2025 · Understand the security, performance, technology, and network details of a URL with a publicly shareable report. Jan 27, 2021 · 7. Aug 13, 2024 · You can use the third-party tools listed below to test and troubleshoot DNS settings. whatsmydns. Fetch Show Headers Dec 21, 2024 · The presence of the Cf-Apo-Via, Cf-Cache-Status, Cf-Edge-Cache, and Cf-Ray response headers indicate that Cloudflare is being used. com and run a standard test Mar 8, 2024 · Discover the enhanced URL Scanner API: Now with direct access from the Security Center Investigate Portal, enjoy unlisted scans, multi-device screenshots, and seamless integration within the Cloudflare ecosystem. Additionally, checking the Server header further confirms Cloudflare’s presence. tylgkfwjmfkmaimgiwnduklptczrpsjecgivhcqogepxbvzquowwfehuywuqcbdegmgidmlx