Consistency Checker by mobileproxy.space: How to Set Up Your Browser and Proxy Flawlessly

Introduction: Why Anti-Fraud No Longer Just Monitors IPs

Five years ago, a "clean" IP was often sufficient: swap the address, access the site, and go about your business. However, in 2026, that strategy is outdated. Modern anti-fraud systems across marketplaces, social networks, banks, and ad dashboards evaluate not only the IP address but also dozens of indirect signals: time zone, language, system locale, connection type, platform, graphics model, screen resolution, WebRTC and DNS leaks, as well as digital fingerprints like Canvas, WebGL, and Audio. Any inconsistency between the declared geographic IP and the browser behavior raises a red flag. This is evident in the rising number of suspicious logins, restrictions, captchas, and bans.

A basic risk scenario looks like this: you connect to a proxy in Paris, but your profile shows a Moscow time zone, a Russian interface, keyboard layout, and date format. A network interface of "Wi-Fi" with a 4G connection type doesn’t match the ASN of a mobile operator, and a resolution of 2560×1440 with a powerful graphics card appears more like a desktop rather than a mobile device. Accumulated heuristics kick in: a strange mix of languages, unverified locations, unstable network quality, mismatched DPI, and pixel density with the claimed User-Agent. The result? Manual moderation, consecutive captchas, or outright blocking.

Our goal as practitioners is to encapsulate these risks during the setup phase. To verify exactly where the configuration does not align with the IP and to make targeted corrections. That’s the purpose of the free tool we’ll discuss next. It won’t just show your IP; it will explain where the "logical fabric" of your session breaks and how to restore consistency.

Service Overview: What Does the Consistency Checker Do and How Is It Useful?

The Consistency Checker by mobileproxy.space is a free online tool that helps check the consistency of browsers and proxies based on key anti-fraud signals. It’s accessible without registration or installation. The service address is: https://mobileproxy.space/consistency-checker.html. You enter, launch the analysis, get a score from 0 to 100, and receive a detailed report. Each metric comes with explanations about its importance and what actions to take if there are discrepancies. Reports can be exported as PDF for sharing with the team or as JSON for automation.

What Checks Are Included in the 15+ Metrics of the Consistency Checker?

• Time Zone vs IP Address: compares the device's time zone offset with the IP geolocation. Critical for all accounts.
• Browser Language vs Country IP: analyzes Accept-Language, navigator.language, and preferred interface language.
• System Locale: regional formats for dates, numbers, currencies, and keyboard layout.
• Screen Resolution vs User-Agent: correlates width, height, devicePixelRatio with the declared platform and device class.
• WebRTC Leaks: checks for local and public IP issuance through RTCPeerConnection.
• DNS Leaks: identifies resolvers outside the proxy tunnel, discrepancies in DoH/DoT.
• Canvas Fingerprint: identifier for 2D rendering, its stability and plausibility.
• WebGL Fingerprint: vendor and renderer, alignment with device class.
• Audio Fingerprint: audio context parameters, stability.
• Touch Support: presence and count of touch events vs platform.
• Battery API: API availability and values typical for mobile environments.
• Connection Type: navigator.connection.effectiveType, downlink, rtt.
• Platform and Architecture: navigator.platform, UA-CH, hardware features.
• User-Agent and Client Hints Check: consistency of shortened UA with Sec-CH-UA, Sec-CH-UA-Platform headers.
• Hardware Resources: hardwareConcurrency and deviceMemory vs device class.

All checks are compiled into a summary scoring. Green indicators show that consistency is maintained. Yellow indicates acceptable but risky discrepancies that should be fixed. Red signifies clear inconsistencies that often trigger anti-fraud measures. The interface provides recommendations at each point: specific settings, headers, browser parameters, and system flags that should be changed.

Key Practical Features

• Score of 0–100: convenient for regression and quality control of profiles within the team. You can set an internal minimum, e.g., 85.
• PDF/JSON Export: PDF for the manager or client, JSON for Playwright/Selenium scripts and CI pipelines.
• Mobile Focus: accurately accounts for the realities of mobile proxies, ASN operators, and connection types.
• Relevance for 2026: support for User-Agent Client Hints, IP geo trends, encrypted DNS by default, and the effects of Privacy Sandbox.
• Free: unlimited checks without an account and installation required.

Scenario 1. Traffic Arbitrage: Quick Audit of Profiles Before Purchase

Who It’s For and Why

Media buyers and team leads working with Meta, TikTok, or Google Ads profiles manage dozens of accounts. Errors in time zone and language impact trust and limits, complicating ad spend and scaling. The Consistency Checker allows for a quick adjustment of settings prior to launch, helping to exclude profiles that pose risks.

Implementation Algorithm

1. Prepare proxies aimed at the target geography and assign them to profiles.
2. Set up profiles in an anti-detect browser or container with manual parameters: Accept-Language, locale, time zone, UI language, resolution.
3. Connect to the proxy and open https://mobileproxy.space/consistency-checker.html.
4. Run the check, study the summary scoring and red zones.
5. Fix the red and yellow points: sync time zones, locales, UA-CH, WebRTC, and DNS.
6. Re-run the check. Repeat until you achieve the target score, e.g., 85+.
7. Export JSON and save it as a profile benchmark. Include it in your onboarding checklist.

Practical Case

A team of 12 media buyers prepared 20 profiles for launching campaigns in the EU. Initially, the average score was 62 out of 100. The main issues included a UTC+3 time zone with a French IP, Accept-Language set to ru, WebRTC revealing a local IPv4, and DNS routing to a domestic resolver. After making adjustments based on service recommendations, the average score increased to 88. In the first sprint, BM approval rose from 42 to 71 percent, while the share of profiles flagged for manual review dropped by 23 percent. The ROI for the first week increased by 18 percent thanks to reduced downtime and repeated attempts to set up accounts.

Life Hacks and Best Practices

• Set a "red line": do not push profiles with scores below 80 to production.
• Export JSON to Git: track changes to profile parameters and compare diffs.
• Sync UA-CH with UA. If you’re using a reduced User-Agent, don’t forget the platform and brand headers.
• WebRTC: block local addresses, but maintain plausibility—a blank trail is also suspicious.
• DNS: if the proxy doesn’t tunnel DNS, use a system DoH that aligns with the IP region.

Common Mistakes

• Russian interface with IP from DE/FR/ES. Correct it using Accept-Language and interface language settings of the profile.
• Desktop matrix at 2560×1440 with a mobile UA. Align dpi and resolution with the device class, and sync devicePixelRatio.
• Unconsidered Battery API. Disable access or select plausible values for mobile profiles.

Scenario 2. SMM and Marketplaces: Loading Content and Listings Without Blocks

Who It’s For and Why

Specialists managing stores on marketplaces and social media accounts across various regions require stability and minimal identity verification. Mismatched parameters quickly cut reach and limit marketplace functionalities.

Step-by-Step Instructions

1. Create a profile for the region: locale, date format, currency, keyboard layout.
2. Connect to a proxy from the required city. Ensure the ASN belongs to a resident or mobile pool, not a data center.
3. Open https://mobileproxy.space/consistency-checker.html and run the check.
4. Work through the red zones: language, geo time zones, resolution, and WebGL vendor.
5. Save the PDF report in the account card and attach it to the content launch checklist.

Case Study

An agency managing 60 listings on two EU marketplaces faced an increase in account "freezes" after changing the proxy provider. The Consistency Checker identified three systemic discrepancies: the profiles' time zones remained unchanged, Accept-Language included en-US instead of the locales of the countries, and WebRTC showed a local subnet of 192.168.0.0. After corrections were made, the number of accounts requiring mandatory verification dropped from 30 to 8 percent, and the average time for publication reduced from 18 to 7 minutes.

Life Hacks

• For localized cards, ensure that number separators and currency formats match the system locale.
• Align Connection effectiveType. If you're working on desktop with mobile proxies, don’t attempt to imitate 4G where the browser genuinely shows "Wi-Fi"—better to adapt the scenario for desktop.
• Disable unnecessary fonts: a selection of system fonts impacts the fingerprint, especially in rare locales.

Errors and Solutions

• Switching the interface language after logging in. The risk of a ban increases with dynamic changes to settings. Configure the profile in advance.
• Using too rare screen resolutions. Stick to common matrices and correlate them with UA.

Scenario 3. Parsing and Data Collection: Boost Your Pass Rate Through Consistency

Who It’s For and Why

Data parsers, price researchers, RPA developers. In 2026, many sites are launching behavioral and technical checks before responding, and headless indicators and inconsistencies in geo can yield 403, 429, or "empty" pages. Consistency checks reduce noise in anti-bot detectors.

Algorithm

1. Create a pool of proxies by region and link them to browser profiles or Playwright/Selenium settings.
2. Gather a basic fingerprint: UA-CH, Accept-Language, time zone, window sizes, enabling WebGL, Canvas.
3. Run each profile through https://mobileproxy.space/consistency-checker.html and save the JSON.
4. Pull the JSON into your runner's config and sync headers and context.
5. Track pass rates and adjust parameters based on service recommendations.

Case Study

A team parsing offers on European sites recorded a 65 percent successful response rate. After transitioning to consistent profiles based on the Consistency Checker recommendations (corrected Accept-Language, locale formats, WebRTC and DNS, aligned WebGL vendor with common configurations), the pass rate reached 90 percent with the same pool of IPs. Average response delays decreased by 12 percent due to fewer captchas and redirects.

Practical Tips

• Use identical profiles within the same domain to avoid "jumping" fingerprints.
• Sync HTTP/2 and HTTP/3: if the IP is typically mobile but the connection is always "Wi-Fi" with high bandwidth, do not attempt to imitate instability; aim for plausibility.
• For DNS: resolving to the nearest regional DoH servers reduces delays and suspicion.

Common Errors

• Too "perfect" Canvas. Unusual or identical values across dozens of machines are suspicious. Diversify configurations.
• Headless mode without masking. Consistency doesn’t replace anti-bot circumvention, but it significantly reduces triggers. Combine it with stealth patches.

Scenario 4. Fintech and QA: Testing Anti-Fraud Rules on a Demo Stand

Who It’s For and Why

Product teams in banking and fintech, QA, and security departments need reproducible provocations for anti-fraud alerts and to verify rule accuracy. The Consistency Checker serves as a benchmark for developing negative and positive scenarios.

Procedure

1. Describe a risk rule, such as "time zone and country IP mismatch" or "local IP in WebRTC".
2. Gather test profiles: A – fully consistent; B – with a targeted violation.
3. Check A and B using https://mobileproxy.space/consistency-checker.html and save PDFs/JSON as test artifacts.
4. Conduct tests on your stand and on the real service, validating that the rule triggers only on B.
5. Make adjustments to weights and logical conditions, repeating the cycle.

Case Study

A bank tested the introduction of two-factor authentication during suspicious sessions. During validation, it became apparent that the rule "language does not match IP" was overly aggressive. After cross-referencing with the Consistency Checker recommendations, the weight of this factor was lowered while the influence of WebRTC and DNS leaks was increased. The result: the rule's accuracy improved and false-positive 2FA requests decreased by 27 percent.

Life Hacks

• Dedicate a "control" profile with a score of 95+ to track regress in your stands.
• Separate client environment factors from network ones. Weight them separately as suggested in the service report.

Scenario 5. Geo-testing of Content, Pricing, and Availability

Who It’s For and Why

Product and marketing teams checking localization, pricing, and availability regionally need to ensure the server delivers the correct version of the site and does not lead into the flow of a "suspicious" guest.

Instructions

1. Select proxies for the countries and cities where content accuracy is critical.
2. Set languages and locales to match your target audience.
3. Check the profile at https://mobileproxy.space/consistency-checker.html before and after entering the site.
4. Gather screenshots and the PDF report to pass on to the product and localization teams.

Case Study

A subscription service tested new pricing for LATAM. When checked through the Consistency Checker, it was revealed that automatic site localization based on Accept-Language wasn’t activated with IP from a specific pool because browsers retained en-US. After language synchronization, the conversion rate for the first step increased by 9 percent, while the number of manual language switches decreased by 34 percent.

Tips

• Check the link between language and currency: locale impacts price formatting, which is important for A/B tests.
• Maintain "normalcy": use widely accepted screen resolutions and GPUs for specific user segments.

Scenario 6. Support and Access Recovery: Safe Session Without Extra Flags

Who It’s For and Why

Support agencies working on recovering access to clients’ accounts need a session that won’t trigger additional checks. A plausible environment reduces escalations and speeds up resolutions.

Step-by-Step

1. Gather regional and language data from the client: time zone, system locale, keyboard layout, date format.
2. Set up the profile according to these parameters and connect to a proxy from the corresponding city.
3. Run it through https://mobileproxy.space/consistency-checker.html, achieving a score of 90+.
4. Carry out access recovery procedures within this session, avoiding on-the-fly parameter changes.

Case Study

An agency conducted a project in the UK, where phone verification and activity checks were required. After transitioning technical support to consistent profiles based on service recommendations, the average recovery time dropped from 2.1 to 1.3 days, while the share of secondary checks decreased from 22 to 9 percent.

Life Hacks

• Avoid changing locale and language after logging in: preparing the profile before authentication is crucial.
• Save the PDF report to the ticket to explain the measures taken to the client and increase trust.

Scenario 7. Developers and DevOps: Control Profile Builds and CI Checks

Who It’s For and Why

Teams developing internal browser profiles, anti-detect solutions, parsers, and RPA need automatic consistency checks when releasing new configurations to maintain trust across existing domains.

How to Implement

1. During the profile-building stage, launch the browser under a proxy and visit https://mobileproxy.space/consistency-checker.html.
2. Export JSON and parse metrics: time zone, language, WebRTC, DNS, UA-CH, Screen, GPU.
3. Set a minimum score in CI, e.g., 85. If below, fail the build.
4. Publish PDF as pipeline artifacts for review and auditing.

Case Study

An anti-bot solutions integrator implemented Consistency Checker checks in their CI. Before the implementation, about 18 percent of profile builds had critical discrepancies in locale and WebRTC. A month after implementation, the share of "red" builds dropped to 3 percent, and the average score increased from 76 to 91. The reduction of client blocking incidents was 21 percent.

Best Practices

• Separate validators into "hard" and "soft". Hard validators break the build, soft ones create a ticket.
• Version standard profiles and compare JSON reports on key metrics.

Which Metrics Have the Greatest Impact: Breakdown of 15 Checks with Explanations

1. Time Zone vs IP

The most significant metric. A mismatch in UTC offset versus geo IP almost always triggers identity verification. Recommendation: sync system time zone and the UTC offset in the profile.

2. Language and Accept-Language

The interface language and Accept-Language header should align with the country of the IP. Combine the country locale with widely-used secondary languages, avoiding exotic sets.

3. System Locale

Affects date, number, and currency formatting. Discrepancies often show up in forms, dropdowns, and JS logs. Set the region and input format accurately.

4. Screen Resolution and devicePixelRatio

Inconsistency with UA is a clear flag. A mobile UA and a resolution of 2560×1440 on "desktop" DPI looks suspicious. Choose plausible pairings.

5. WebRTC

Issuing a local IP or public IP bypassing the proxy is a common cause for red flags. Limit ICE candidates or reroute only through the proxy.

6. DNS

Resolvers outside the IP region yield inconsistencies. Utilize system DoH/DoT or a proxy resolver in the same region.

7. Canvas

Too identical fingerprints across multiple profiles create a cluster. Diversify rendering and avoid "zero" values that are rarely seen in the wild.

8. WebGL

Vendor and renderer should correspond to the device class and OS. It’s odd to see a powerful discrete GPU in a mobile UA.

9. Audio

Audio fingerprints are stable within the configuration. Monitor for plausibility and diversity among profiles.

10. Touch

Presence of a sensor and the number of touch points for mobile profiles is a plus. For desktops, honestly display the lack of touch.

11. Battery API

This is often limited in modern browsers, but may leak in Android WebView. If available, values should be realistic.

12. Connection Type

EffectiveType, downlink, and rtt shape network quality expectations. Hyper-stable connections with a mobile ASN can appear suspicious.

13. Platform and Architecture

Navigator.platform and UA-CH should match the OS and device. Do not show Win64 under Mac, and vice versa.

14. User-Agent and Client Hints

In the era of UA-Reduction, Sec-CH-UA headers are more important than the UA itself. Align brands, platforms, and versions.

15. Hardware Resources

hardwareConcurrency and deviceMemory help determine device class. A mobile profile with 32GB and 32 threads looks atypical.

Comparison with Alternatives: Why Consistency Checker is More Convenient

There are classic "what is my IP" and scattered fingerprint demonstrations. They show facts but do not provide a comprehensive view linking "IP → environment parameters". Consistency Checker performs an consistency check and evaluates how logically your proxy profile appears for the chosen geo. Key differences:

• Score of 0–100: makes it easy to understand profile readiness for production.
• Contextual Recommendations: what and where to fix to move out of the "red zone".
• Mobile Focus: accounting for the realities of mobile ASN and typical "pain points" of 4G/5G proxies.
• PDF/JSON Export: ready-made artifacts for teams and pipelines.
• Updates for 2026: UA-CH, DoH by default, changes to WebRTC, and restrictions in Battery API.

And most importantly, the tool is free and starts instantly. You don’t waste time on installation or credits, and get actionable insights right from the first run.

FAQ: Frequently Asked Questions and Short Answers

How is the final score of 0–100 calculated?

It’s a weighted sum of blocks: critical ones (time zone, language, WebRTC, DNS) hold more weight, while behavioral and hardware metrics are less significant. Several "yellow" may drop into "red" when combined.

What should be corrected first and foremost?

Time zone vs IP, language and locale, WebRTC leaks, and DNS. These four groups frequently raise suspicions and additional checks.

How do I fix the time zone and locale?

Set the system time zone to match the proxy region. In the browser profile, set the corresponding interface language and Accept-Language, syncing the regional formats for dates and numbers.

What to do about WebRTC?

Limit ICE candidate sources, eliminate local IPs, and check that public candidates go through the proxy. Complete disabling can sometimes be suspicious, so balance is key.

How to close DNS leaks?

Use a proxy resolver or system DoH that aligns with the IP region. Ensure there are no requests to local resolvers outside the tunnel.

Is the service suitable for VPN instead of proxy?

Yes. The checks are equally relevant for VPNs. The essence is the consistency of environment and IP geo, not the type of tunnel.

Is a data center IP okay?

For many platforms, resident or mobile ASNs are preferred. A data center can be used, but consistency must be perfect; otherwise, risks are higher.

Are anti-detect browsers supported?

Yes. The tool shows the actual environment, helping assess profile and template quality in AdsPower, Dolphin, Incogniton, GoLogin, and others.

Does headless mode worsen the score?

The service evaluates consistency. Being headless itself is a side-channel factor, but many inconsistencies in headless profiles are visible here, allowing for corrections.

How to use the JSON export?

Capture the profile in CI, parse key fields and validate automatically. If metrics fall below threshold—send it back for adjustments.

Errors Often Forgotten and How to Avoid Them

• Unsynchronized Accept-Language: even if the interface language was changed, the header may have remained. Check both.
• Stable Canvas Across Dozens of Profiles: diversify presets and avoid artificially identical values.
• WebGL Vendor Doesn’t Match Device Class: correlate GPU with profile type.
• DevicePixelRatio and Resolution: everyday accurate values are better than rare ones.
• DNS Going to Local Resolver: prior auditing of resolvers is essential.

Combining with Other Tools and Processes

• Anti-Detect Browsers: apply Consistency Checker recommendations while building profiles and check each release.
• Selenium/Playwright: integrate JSON with baseline metrics and sync headers and contexts.
• Proxy Managers: automate rotation, but fix a consistent set of parameters for the domain.
• CI/CD: minimum scoring is a condition for pipeline clearance for profiles.

How to Get Started Right Now

1. Define the region, tasks, and types of accounts.
2. Set up the profile for the target region: time zone, language, locale, resolution.
3. Connect to the proxy and go to https://mobileproxy.space/consistency-checker.html.
4. Run the check, fix discrepancies, and repeat until achieving 85+.
5. Save the PDF/JSON report and establish the practice within the team.

Conclusions: When the Consistency Checker is Especially Useful

If you’re working with multi-accounts, traffic purchases, marketplaces, scraping, or QA for anti-fraud—environmental consistency plays a crucial role in success. The Consistency Checker from mobileproxy.space provides a free, fast way to peer into anti-fraud systems: identifying where the configuration signals inconsistency and how to rectify it. In 2026, this has become a matter of hygiene. Increase your final score, address red zones, and leverage exports for automation—and you’ll notice a predictable rise in approvals, a decrease in manual checks, and time savings. Start right now with one profile at https://mobileproxy.space/consistency-checker.html – and establish a benchmark for the entire team.