The Combination That Actually Works

If you've ever tried to manage multiple accounts, run large-scale web scraping operations or protect your online business from platform restrictions, you've probably run into the same frustrating reality: using a proxy alone isn't enough. Neither is an anti-detect browser on its own. The moment platforms evolved their detection capabilities, the game changed entirely.

Today, serious professionals rely on a combination of both. In this article, we'll break down exactly why each tool matters, where each one falls short on its own and how pairing MostLogin with high-quality proxies from Flexyproxies gives you a setup that's built to last.

What Each Tool Actually Does

Before diving into the combination, it's worth being precise about what each tool brings to the table, because there's a lot of confusion in this space.

A proxy server routes your internet traffic through a different IP address. From the perspective of any website or platform you visit, the request appears to come from the proxy's IP rather than your real one. This is useful for bypassing geo-restrictions, avoiding IP-based bans and assigning separate identities to separate accounts based on their IP address.

An anti-detect browser, on the other hand, addresses a completely different layer of tracking: your browser fingerprint. Every browser leaks a surprising amount of information with every request it makes, including your operating system, screen resolution, installed fonts, canvas rendering behavior, WebGL output, audio context, time zone and dozens of other parameters. Platforms collect all of this data and use it to identify and link accounts, even when the IP addresses are different.

MostLogin was built specifically to solve this problem. It lets you create fully isolated browser profiles, each with its own unique and realistic fingerprint. Every profile behaves like an entirely separate device to the outside world, with its own cookies, local storage and browsing history. No profile leaks into another.

Why One Without the Other Leaves You Exposed

Here's the core issue: if you run multiple browser profiles through MostLogin but assign them all the same IP address, platforms will still see a pattern. Multiple accounts originating from one IP is a classic red flag, regardless of how convincing the fingerprints are.

On the flip side, if you use different proxies but run everything through a standard browser, your fingerprint stays identical across sessions. Platforms cross-reference fingerprint data with account behavior and will connect the dots quickly.

Running proxies without an anti-detect browser also leaves you exposed to canvas fingerprinting, WebRTC leaks and other techniques that can bypass IP-level anonymity entirely. Many users are surprised to discover their "anonymous" setup was never actually anonymous at all.

The only way to close both gaps at the same time is to combine a unique IP address per profile with a unique fingerprint per profile. That's the setup that holds up.

Choosing the Right Proxy for Each Use Case

Not all proxies perform equally well in combination with an anti-detect browser. The type of proxy you choose has a direct impact on how trusted your profiles appear to platforms.

Flexyproxies offers several proxy types that work particularly well for professional multi-profile setups:

• Residential proxies use IP addresses assigned by real Internet Service Providers to real households. They carry a high level of trust with platforms because they look exactly like genuine user traffic. For account management, affiliate marketing and social media operations, residential proxies are the go-to choice.
• Mobile proxies route traffic through mobile carrier networks. Since the vast majority of social media usage happens on mobile devices, these IPs are extremely difficult for platforms to restrict without catching real users in the process. They're especially effective for platforms like Instagram and TikTok where mobile traffic dominates.
• Datacenter proxies are faster and more cost-effective but carry a lower trust level. They work well for tasks like price monitoring, SEO research and data collection where account trust isn't a primary concern.

When setting up profiles in MostLogin, you assign a proxy directly to each browser profile. Flexyproxies supports sticky sessions, which means your IP stays consistent throughout an entire browsing session. This is critical because a mid-session IP change is one of the fastest ways to trigger a platform review.

A Real-World Setup: From Zero to Fully Isolated Profiles

Setting up this combination in practice is more straightforward than most people expect. Here's how a typical workflow looks:

Get your proxies from Flexyproxies

Choose the proxy type that fits your use case and select geo-targeted locations that match where your accounts or operations are supposed to be based. For most account management scenarios, residential proxies with sticky sessions are the right starting point. Flexyproxies provides the credentials you need in a format that's easy to plug directly into MostLogin.

Create browser profiles in MostLogin

Open MostLogin and create a new browser profile for each account or identity you need. In the proxy settings of each profile, enter the credentials from Flexyproxies, generating a realistic and unique fingerprint for each profile that matches the location and device type you've selected.

Verify before you operate

Before logging into any accounts, run a quick check using a fingerprint testing tool to confirm that each profile presents a clean and consistent identity. Verify that the IP, time zone, browser language and other parameters all align correctly. A mismatch here, even a small one, can be enough for a platform to flag the session.

Operate and scale

Once verified, you can open multiple profiles simultaneously in MostLogin without any risk of cross-contamination. Each profile is fully isolated. Cookies, local storage and session data from one profile never bleed into another. Combined with the dedicated IPs from Flexyproxies, each profile looks and behaves like a completely independent user on a completely different device.

What to Watch Out For

Even with the best tools in place, operational discipline matters. A few things to keep in mind:

• Always match your time zone and language settings to your proxy location. A profile claiming to be in New York but sending requests in German with a Central European time zone will raise flags.
• Never share proxies between profiles. One IP per profile is a hard rule. Sharing an IP across two accounts, even briefly, is enough to link them in platform logs.
• Warm up new accounts gradually. Don't jump straight into high-volume activity. Spend a few sessions browsing naturally before performing any significant actions.
• Monitor your proxies regularly. A flagged or blacklisted IP undermines the entire setup. Flexyproxies allows you to replace IPs when needed and offers reliable uptime so your operations don't get interrupted unexpectedly.

The combination of MostLogin and Flexyproxies isn't just a technical workaround. It's the foundation of any serious multi-account or anonymity setup. MostLogin handles the fingerprint layer with precision, giving every profile a believable and isolated digital identity. Flexyproxies handles the network layer, ensuring each profile connects from a trusted and consistent IP address.

Used together, they cover every angle that modern platform detection is designed to exploit. Whether you're managing dozens of client accounts, running large-scale data collection or simply protecting your own operations from unnecessary restrictions, this is the infrastructure that serious professionals rely on.

Set it up right and you'll rarely have to think about it again.