- Cloudflare 1.1.1.1 typically offers lower latency than Google DNS globally, with a particular advantage in Europe and good performance on mobile devices.
- Google Public DNS stands out for its stability, massive compatibility and DoH/DoT support, although it raises more privacy concerns.
- Alternative DNS services such as FlashStart, OpenDNS, CleanBrowsing, or AdGuard add threat filtering, parental controls, and ad blocking.
- The best choice depends on your priority (speed, privacy, or control) and real-world testing on your network and mobile devices.
When a website takes forever to load on your mobile or doesn't even open, it's often not the fault of your WiFi or your data, but of the DNS server that is resolving your domainsIt's something that's usually pre-configured by the operator, goes completely unnoticed by most users... but it greatly influences the perceived speed, stability, and even privacy while browsing.
In recent years the debate has focused on one very specific question: Which is faster and more recommended for mobile, Cloudflare DNS or Google DNS?The equation now includes alternatives focused on security, ad blocking, and parental controls, such as AdGuard, FlashStart, OpenDNS, CleanBrowsing, and Quad9, and it's understandable that this raises some questions. Let's take a closer look, using real-world test data, at what each one offers and how to choose the one that best suits your phone.
What is a DNS and why is it so important on mobile?
A DNS (Domain Name System) is the translator that converts addresses like profesionalreview.com into numeric IPsInstead of memorizing numbers like 213.162.214.40, you type the website name, and the DNS server takes care of returning the correct IP address so the browser can connect.
Every time you access a page from your smartphone, the system launches constant DNS queries to resolve all the domains involvedThe main website, scripts, CDNs, images, ads, APIs… Until the DNS responds, the browser can't start downloading anything. If that step is delayed, everything feels sluggish, even if you have plenty of fiber optic internet or good 5G coverage.
By default, both the router and the mobile phone usually use the DNS from the operator (ISP) without you doing anythingThey are usually acceptable as a temporary solution, but they are not always the fastest; they may apply blocks for legal or commercial reasons and, crucially, they may record the history of domains you query. Android, for example, allows you to manually change the DNS settings or activate a private DNS. if you want to take control.
What makes a DNS server fast, secure, and reliable
When we talk about "better DNS," it's not just a matter of response times in milliseconds. A good naming service combines performance, privacy/security and reliabilityThe weight of each factor will depend on what matters most to you, but it's worth knowing them.
Privacy and encryption of queries
Today, a modern DNS shouldn't leave your requests "in plain sight." Services like Cloudflare 1.1.1.1 and Google Public DNS They allow you to encrypt queries using DNS over HTTPS (DoH) and DNS over TLS (DoT), so that your operator or other intermediaries cannot easily see which domains you access or manipulate the responses.
Here are some differences in approach: Cloudflare promises to delete query logs within 24 hours. and claims it does not create user profiles with that data. Google, with a business heavily based on advertising and analytics, generates more misgivings, although it also publicly documents how long it retains certain DNS data.
Resolution speed and latency
The speed of a DNS is measured by the average response time (latency) it takes to answer a queryThe lower that number, the sooner the browser starts requesting content from the website. Large public resolvers (Cloudflare, Google, FlashStart, Quad9…) use globally distributed networks capable of handling millions of requests per second with nodes very close to users.
In practice, this means that It usually improves the response time considerably compared to the DNS servers of many operators.Especially if your ISP doesn't invest much in that part of the network. With tools like DNS Benchmark, DNS Jumper, or tests on websites like DNSPerf, you can quickly measure which server performs best with your specific connection. Find out which DNS you use on Android.
Protection against malicious websites and content control
Another key aspect is security. Some DNS servers, in addition to resolving domains, They block websites associated with malware, phishing, or dangerous content.This is done by comparing each request against constantly updated threat lists. Solutions like FlashStart, OpenDNS, CleanBrowsing, Quad9, Norton DNS, or AdGuard expand on this with themed filters or parental controls.
In family and business environments, it is very useful to be able to filter entire categories (pornography, gambling, dangerous downloads, etc.) without installing anything on each device. The price sometimes paid is false positives: legitimate websites that stop loading properly because they share a domain with blocked elements.
Cloudflare 1.1.1.1: Mobile focus, speed, and privacy
Cloudflare went from being “just” a web infrastructure and CDN company to becoming a Leading authority in authoritative DNS for businesses and public resolver for usersTheir DNS platform includes two main components that should be distinguished.
On one side is the Cloudflare Authoritative DNS for corporate domainsThis is the service many websites use for Cloudflare to manage their records. It offers very low response times, built-in DDoS mitigation, one-click DNSSEC support, and a distributed network across data centers worldwide. It's included in the Free, Pro, Business, and Enterprise plans, and the latter can opt for Foundation DNS with advanced features without complicating administration.
On the other hand is the public resolver 1.1.1.1, which is the one you're interested in for your mobile phone, tablets, or routerIt's free, uses the IP addresses 1.1.1.1 and 1.0.0.1, and is focused on two promises: high speed and enhanced privacy. Cloudflare claims it doesn't store more data than necessary to operate the service and deletes query logs within 24 hours.
Furthermore, its resolver supports DNS over HTTPS and DNS over TLS to encrypt your queriesThis makes it much harder for your ISP to spy on which domains you access or to block you for commercial or legal reasons. This is especially important for mobile connections or public Wi-Fi.
A very practical feature for smartphones is the app 1.1.1.1 + WARP available on iOS and AndroidWith a single button, you can activate the use of 1.1.1.1 without touching your system network settings. If you enable Warp, traffic is routed through the Cloudflare network as if it were a lightweight VPN, which can improve stability and privacy on certain mobile or unreliable Wi-Fi networks. If you need instructions, here they are. Guide to changing the DNS on your Android mobile.
Google Public DNS 8.8.8.8: the very stable veteran
Google's public DNS servers, with IPs 8.8.8.8 and 8.8.4.4They are surely the most famous in the world. They became popular because they offered three highly valued things: good speed, very high availability, and incredibly easy setup.
In terms of performance, although they no longer always lead, they continue to offer highly competitive latencies in almost any countryIn many home connections, simply switching from the ISP's DNS to Google's results in faster browsing and more stable domain resolution.
Another strong point is the availability close to 100%Metrics from services like DNSPerf place Google DNS in the high reliability zone, competing head-to-head with Cloudflare and other major providers. Total failures are very rare, and if a node experiences problems, the system routes traffic to other points of presence.
Google has also caught up in security by implementing DoH and DoT for encrypting DNS queriesOn a technical level, this puts it on par with the big players in terms of modern protocols. However, the main concern for many users is trust: given Google's business model, there's a suspicion that it might use this request data, even if it doesn't directly link it to your account.
That perception intensified during moments like the scandal of Cambridge Analytica and the debate on internet privacywhich further called into question the image of large technology companies. This has led some privacy-conscious users to look more favorably upon alternatives like Cloudflare.
Real speed comparison: Cloudflare vs Google and other DNS providers
Beyond sensations, there are Independent studies that measure the latency of major public DNS servers From multiple points around the world. It's where you can see, with numbers, who responds first, on average.
Global DNS performance studies
In an analysis of 18 locations across North America, Europe, Asia, and South America, the average response times of several public issue resolution bodies were measured, with very clear results: Cloudflare 1.1.1.1 led with a global average of around 4,98 ms, while Google remained at 16,44 ms.
In that same study, the global ranking was approximately as follows, in milliseconds (less is better): Cloudflare 1.1.1.1: 4,98ms; Google: 16,44 ms; Quad9: 18,25ms; CleanBrowsing: 19,14ms; Norton: 34,75ms; OpenDNS: 46,51ms; Comfortable: 71,90 ms; Yandex: 169,91 msIn other words, Cloudflare practically swept the competition in average response time worldwide.
When looking only at Europe, the differences became even more pronounced. The average values were approximately 2,96 ms for Cloudflare, 4,35 ms for Quad9, 5,74 ms for CleanBrowsing, 7,17 ms for Google and slightly higher figures for OpenDNS, Norton, Comodo, and Yandex. Again, Cloudflare was clearly the fastest.
According to those metrics, Cloudflare proved to be the fastest DNS in 72% of locationswith latencies below 5 ms in some regions. Quad9 even surpassed Google in North America and Europe, but its performance faltered in Asia and South America.
Specific tests: DNS Benchmark, DNS Jumper, and DNSPerf
In addition to global studies, there are free tools that anyone can use to see which DNS works best for them from home. Utilities like DNS Benchmark allow you to... Compare the speed of 1.1.1.1 to 8.8.8.8 on your computer (and many others) in different scenarios.
In a typical comparison, Cloudflare (1.1.1.1 and 1.0.0.1) outperformed Google in cached searches (red bar), uncached queries (green bar), and in many cases, even when querying DotCom servers (blue bar)Google was slightly faster in certain specific cases, but the overall balance favored Cloudflare.
DNS Jumper offers another type of view, listing the latency of dozens of DNS servers from your connectionIn a real test, Cloudflare appeared with around 20 ms while Google DNS (8.8.8.8) was around 53 ms, almost in the middle of the table. A difference of 20 ms It's not too noticeable during normal browsing, but in online games or real-time apps, where every millisecond of ping counts, it can be more noticeable.
Online benchmarking platforms such as DNSPerf has shown Cloudflare ahead of Google and OpenDNS for quite some time. In many regions, it achieves response times of around 14,2 ms compared to 20-30 ms for other competitors. These values align with the perception that 1.1.1.1 is one of the fastest solvers on the planet.
Beyond just latency, changing DNS can also Resolve access problems to specific websites that your ISP handles poorly.A well-known practical example is that of a user who couldn't access the gpd.hk domain using their ISP's automatic DNS, while the page loaded without problems using Google DNS or Cloudflare. In this case, the improvement isn't speed, but simply being able to access the site.
FlashStart: First-rate DNS protection
Within the category of DNS servers designed for security and filtering, FlashStart has gained prominence thanks to its combination of performance and protectionAccording to DNSPerf data, it has positioned itself as one of the fastest DNS protection services available worldwide.
In those measurements, FlashStart achieved an average resolution time of 13,45 msThis puts it ahead of general-purpose resolvers like Cloudflare 1.1.1.1, Google DNS, DNSFilter, and Cisco Umbrella in that specific niche. The published comparative figures are approximately: FlashStart 13,45 ms; Cloudflare 1.1.1.1 15,12 ms; DNSFilter 15,6 ms; Google DNS 16,42 ms; Cisco Umbrella 19,91 ms.
It also fares well in terms of reliability, with an uptime of around 99,95%Slightly above Google DNS (99,92%), Cloudflare 1.1.1.1 (99,52%), and other filtering-oriented competitors. This data makes it a very attractive option for ISPs, business environments, and public administrations in which a balance between security, performance and uptime is sought.
Beyond speed, FlashStart offers Easy integration across different types of networks and devices, real-time protection against malware and phishing and a redundant global infrastructure designed for professional scenarios. If you're looking to combine performance with content and threat filtering, it's a serious contender to consider.
Other popular alternative DNS servers and what they offer
Along with Cloudflare, Google, and FlashStart, there's a long list of alternative DNS servers you can configure on your router, PC, or mobile device to fine-tune your experience according to your priorities. Each has its own strengths.
OpenDNS (208.67.222.222 / 208.67.220.220) It belongs to Cisco and is well-known for its parental control and content filtering options. It allows users to block specific categories (pornography, gambling, etc.) and is widely used in homes with children and schools.
Level 3 (209.244.0.3 / 209.244.0.4) For years, it was considered one of the fastest resolvers thanks to its Tier 1 network and low overall latency. With the arrival of Cloudflare and others, competition has increased, but it remains a historical benchmark for speed.
Verisign (64.6.64.6 / 64.6.65.6) It prioritizes stability and a relatively conservative stance on privacy, seeking a balance between performance and less intrusive data policies.
Quad9 (9.9.9.9)With support from IBM and other entities, its proposal focuses on Block malicious domains using reputation listsIn some global tests it lagged behind Cloudflare but ahead of Google in regions like Europe and North America.
CleanBrowsing (185.228.168.168 and variants) It specializes in blocking adult content and protecting children. In certain tests it was the Faster DNS with adult filteringThis makes it a good option for families and organizations that need strict filters.
AdGuard DNS It appears in many routers and systems as an option for block ads and trackers at the network levelIts strength lies in reducing advertising and tracking before they reach the browser, improving privacy and sometimes loading speed. The drawback is that, being aggressive, it can break some websites or leave sections not loading correctly. If you want block ads without external appsThis is one of the avenues that is usually explored.
Other names can be added to this list, such as Norton ConnectSafe, Comodo Secure DNS, SafeDNS, OpenNIC, SmartViper, Dyn, FreeDNS, Alternate DNS, Yandex DNS or even specific resolvers like puntCATThey all have their own niche (more anonymity, themed filters, enhanced protection, etc.), and ideally you should test them with tools like DNS Jumper to see which one performs best on your network.
Advantages and risks of changing the DNS of your router or mobile phone
Changing the DNS used by your router or smartphone can help. clear improvements in speed, reliability, security and freedom of accessBut it also has some potential drawbacks that are worth knowing about.
Main advantages of using an alternative DNS
The first advantage is usually a faster browsing sensationReductions of just a few milliseconds per resolution, combined with all the requests a modern website makes, mean pages start loading faster. It won't increase your bandwidth, but it will improve speed on initial loads or when you're constantly visiting new sites.
Another strong point is the greater reliability and uptimePlatforms like Cloudflare, Google Cloud, and FlashStart have redundant global networks spanning many countries and automatic failover systems. It's rare for these services to go down en masse; if one node fails, others take over almost instantly.
It is also common to use alternative DNS for avoid blocks imposed by the operatorWhen your ISP blocks access to a website at the DNS level, changing the domain name server usually bypasses that censorship, except when the court order involves more advanced blocking measures. It can also resolve issues with websites that are misconfigured in the ISP's DNS servers.
Finally, with DNS oriented towards filtering, You gain security and control without installing software on each device.You can block malicious domains, phishing pages, or entire categories of unwanted content for all devices connected to that router—very useful in homes with children, small offices, or schools.
Possible problems when changing DNS
It's not all advantages. One risk is assuming that a public DNS will always be faster than your ISP's, because The reality of each network may be differentIf the operator has servers very close by and well configured, they could match or even outperform some public resolvers in your city. Therefore, it's wise to test before deciding.
Another possible side effect is the DNS-based content geolocationSome streaming or download services use the IP address of the name server to decide which node to serve your content from or which catalog to display. If your DNS server is geographically distant, routes, download times, or even minor catalog differences may change, although this is becoming less of an issue.
In the case of DNS with ad blocking or very aggressive filters, the typical problem is... false positives that cause certain websites to crashAdGuard DNS, CleanBrowsing in strict mode, and similar programs can prevent entire sections of perfectly valid pages from loading. If you don't know the DNS is the culprit, it can be downright frustrating.
Cloudflare or Google as “universal” DNS for your devices
Many people are considering setting up Cloudflare 1.1.1.1 or Google 8.8.8.8 directly on the router so that all devices in the home (mobile phones, laptops, smart TVs, game consoles, etc.) benefit from the same fast and stable server. It's a reasonable strategy, but some points need clarification.
In almost all independent tests, Cloudflare 1.1.1.1 usually outperforms Google in average response timeEspecially in Europe and much of Spain, the differences are only a few milliseconds. In everyday use it's not a huge difference, but when you add up dozens or hundreds of resolutions per browsing session, you notice a slight improvement in speed.
If you're very concerned about privacy, the 24-hour logging policy and a promise not to commercially exploit query data This gives Cloudflare a friendlier image compared to Google DNS, whose brand is associated with advertising and analytics, even though its retention policies are also documented.
On the other hand, Google DNS is almost a de facto standardIt's supported by countless older routers, manuals, embedded devices, and technical documentation. Cloudflare is also compatible with virtually everything, but Google has been around longer and has a huge footprint, which can be an advantage if you manage a lot of heterogeneous equipment.
The case of the user who could not access gpd.hk with their ISP's DNS but could with Google or Cloudflare This reinforces the idea that it's worthwhile to configure a reliable public DNS server on your router when the one provided by your internet service provider is unreliable. Even so, the best practice is to use DNS Benchmark or DNS Jumper to test your connection, because The best DNS depends on the city, operator, time of day, and even occasional congestion..
How does all this fit into mobile usage?
On mobile, the impact of DNS choice is even more delicate, because You constantly switch networks and often rely on unreliable connectionsYou switch from home WiFi to office WiFi, then to mobile data, to a bar's WiFi... and each of those networks usually has a different name server.
If you configure apps like 1.1.1.1 from Cloudflare or use system-level DoH/DoT on Android and iOSYou maintain a consistent, fast, and encrypted resolver on almost any network you connect to. This reduces interruptions and helps make your browsing experience smoother, especially on public Wi-Fi or open networks. For a practical guide on how to apply these options on Android, see the article on Blocking email trackers using DNS.
On a technical level, a Faster DNS slightly reduces the time the mobile device keeps network processes active. for resolving domains. You won't double the battery life, but it does help everything run more smoothly, with less unnecessary waiting while domain names are resolved in the background.
On public networks, the use of Encrypted DNS and external resolvers make it difficult for the WiFi administrator to see which domains are being queried. or that injects manipulated responses to redirect you to sites you didn't request. It's not a substitute for a full VPN, but it's a simple step toward gaining some privacy and avoiding certain types of attacks or manipulation.
Given all of the above, it is clear that there is no perfect DNS for everyone, but there are some clear patterns: Cloudflare often leads in latency and privacy compromises, while Google offers a very solid mix of stability, compatibility, and speed.Services such as FlashStart, OpenDNS, CleanBrowsing, Quad9, and AdGuard add valuable layers of security, filtering, and parental control for homes and businesses.
The key is to prioritize what matters most to you (pure speed, privacy, content control, or security) and test on your own connection which resolver best suits your browsing style, especially on mobile, where every extra second of waiting is noticeable and can often be avoided simply by adjusting the DNS properly.