Ahrefs shows the "too many sessions" message, or simply signs you out, when your login is in use in more places at once than your plan allows. Which rule applies depends on when the plan was bought. Ahrefs' help center, updated on September 3, 2026, describes two.
Plans bought before March 18, 2022. Ahrefs counts users as simultaneous sessions. Its help article puts it this way: "By users, we mean a number of simultaneous sessions, so if you exceed the limit, you might experience an issue with being kicked out of your Ahrefs account". Lite and Standard allow one user, Advanced three and Agency five.
Plans bought since then. One person uses one login, on one device at a time. In Ahrefs' words, "You can use Ahrefs on multiple devices but not simultaneously". If you open the account on several devices at once, you "will get a confirmation message and need to log in anew". Every extra person needs a seat of their own.
Either way, the limit is part of what you pay for, and a proxy cannot raise it. What a VPN or a proxy can do is set off the identity checks that sign you out, as the sections below explain. To see which kind of plan you have, open Account Settings, then Subscriptions.
How do I fix the error?
- Sign out everywhere else. Close Ahrefs on the other computer, the phone and the second browser, and sign out there first. Ahrefs says that "if you signed in to one device, you need to log out before using it on another device".
- Clear the cookies for ahrefs.com. Ahrefs gives this step for the older plans, and it also helps when a sign-out did not finish. In Chrome, open ahrefs.com, right-click the page and choose Inspect. Then open the Application tab, right-click Cookies and choose Clear. In Firefox, open Privacy & Security in the settings, choose Manage Data, search for ahrefs.com and remove it.
- Confirm the email. Ahrefs sends a confirmation email when you sign in from a new device or IP address, a different browser or an incognito window, and after you clear cookies. Confirm it once for each new device.
- Turn on two-factor authentication. Ahrefs offers no switch that turns the confirmation emails off or allows an IP address. It does say that two-factor authentication can replace them.
- Keep one browser and one connection for Ahrefs. The fewer new places your login appears in, the fewer checks it meets.
Why does it happen when only I use the account?
Most cases with one person come from logins you forgot about, or from an address that changed.
- A session left open elsewhere. The office computer, the laptop at home and the phone each hold a login until you sign out.
- A second browser or profile. Each browser keeps its own cookies, and Ahrefs treats a sign-in from a different browser like one from a new device. Two Chrome profiles keep separate cookies too.
- An incognito window. Ahrefs lists signing in from an incognito tab or window among the cases that trigger a new confirmation.
- An address that changed under you. Ahrefs asks you to verify again when you "log in from a new device/IP". A VPN that reconnects through another server changes your IP. So does a laptop that moves from Wi-Fi to a phone hotspot, and a rotating proxy does it on every request or every few minutes.
Do a VPN or a proxy cause it?
They cause the checks that come with it. Each new IP address can bring a new confirmation email. A VPN with automatic server switching, or a browser extension that sends traffic through a pool of addresses, keeps changing the IP. Ahrefs then sees a login that keeps moving.
The answer is a stable connection for the browser you use with Ahrefs. The simplest is your own connection, with no VPN or proxy. If that browser has to go through a proxy anyway, for example on a company network, give it one fixed address. A sticky session holds one address for as long as you set, as our guide to sticky and rotating sessions explains. An ISP proxy keeps the same address from one day to the next. A rotating pool is the wrong tool for any signed-in session.
Can a proxy let several people share one login?
No, and this guide does not explain how. Ahrefs' help center asks the question itself: "Can I share login access of my Unlimited plan account with multiple people?" Its answer is "No", followed by "If you need multiple users to share your Ahrefs subscription, please purchase additional seats so each person can login with their own account to share your workspace". Its page on confirmation emails adds that "only one person can use the same login details".
The terms say the same in legal form. Ahrefs' Terms of Service, last modified September 14, 2026, forbid you to "hide or misrepresent who you are to use Ahrefs Services or to breach the Terms". They also forbid any attempt to "circumvent or bypass any functionalities, restrictions, limits or access features of Ahrefs Services". Ahrefs keeps the right to suspend or end the subscription and the account, or to block an IP address.
Guides on antidetect browser sites describe setups that put several people behind one login with separate browser profiles and proxies. Those setups do exactly what the two clauses forbid. The account they put at risk holds your projects and your tracked keywords, and a proxy cannot add a seat to it.
What does a seat of your own cost?
Less than a lost account. On October 23, 2026, Ahrefs' pricing page listed each extra user at a fixed monthly price per plan.
For a whole team, the totals add up quickly. We worked them out from the same list prices:
Invited people sign in with their own email and password and then switch to the shared workspace. Owners and admins invite them from the Members tab in Account settings. If the budget does not stretch that far, two cheaper routes stay inside the rules. The free plan covers sites you verify as your own, with Site Explorer, Site Audit and web analytics. The Starter plan costs $29 a month for one user.
Where do proxies belong in SEO work?
On the open web, away from the Ahrefs login. SEO teams use proxies to check how search results and their own pages look from another country, and to test a site's location rules. Our proxies for SEO page covers that work. Proxies have no place in front of Ahrefs itself. Its terms forbid scraping Ahrefs, and they forbid automated use except through the Ahrefs API.
For the work on the open web, our residential proxies cost $0.50/GB for one GB, falling to $0.44/GB at 2,000 GB+. For a signed-in tool on your own connection, you need no proxy at all.
What we could not check
- We did not sign in to Ahrefs. The rules on this page come from Ahrefs' help center as updated in September 2026, its Terms of Service as modified on September 14, 2026, and its pricing page as read on October 23, 2026.
- Ahrefs shows the session message only as a picture in its help article, so we could not quote its exact wording.
- Ahrefs changes its plans and prices. Its own help center notes that older forum posts often describe outdated plans. This page is due for a check by January 23, 2027.
Sources
- Ahrefs help center: Why am I being kicked out of Ahrefs account?, Why does Ahrefs keep asking me to verify my account?, What is the difference between Credit-based plans and Unlimited credit plans?, How do I add and manage users?, What's the difference between all Ahrefs subscription plans? and What is my subscription plan?, read October 23, 2026.
- Ahrefs Terms of Service, last modified September 14, 2026, sections 4.4 and 8.4.
- Ahrefs pricing page, list prices with monthly billing, read October 23, 2026.
