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Voting Protection

Contests with IP and device limits: one vote per network without crossing the line

Shared Wi-Fi, mobile data and family tablets can all trigger an already-voted message. This guide shows who gets blocked, which options are honest and what we refuse.

In shortAn IP or device limit lets one vote through per network address or per device, so people who share a connection can find that someone else has already used it. CoinMarketing Pro maps where your supporters connect from, writes separate asks for homes, schools and offices, and helps you request fair exceptions from the organizer. We never help anyone dodge the limit.
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What does one vote per network or device mean for a supporter?

It means the contest tries to count each connection or device once, and a supporter who meets the limit sees a message saying a vote has already come from there.

The contest decides how it recognises a connection or a device, and it rarely explains the method. That matters because it makes the limit hard to predict from outside. Two supporters in different rooms can look alike to the contest if they share a router. One person using two browsers on the same phone might look like one device, or might not. We do not guess, and we do not state how any particular contest does it. We test what we can see: what the page says, what the rules say, and what supporters report.

What the rule is really trying to do

One vote per person is the aim. A network or device limit is a rough proxy for it, and like any proxy it catches some honest people. The more shared a connection is, the more often a genuine supporter meets a block that was not meant for them. So the promotion job is twofold: spread asks so that groups are not funnelled into one connection, and tell blocked supporters what to do next without pushing them toward tricks.

Who gets blocked by a network or device limit, and what is the honest option?

Anyone who shares a connection or a device with someone who has already voted.

Where supporters connect from Why a vote can be blocked The honest option
A family home Several people share one router Each person votes on their own phone, one after another
A school or university Many students share one network Vote at home, or ask the organizer about a school arrangement
An office Colleagues share a company connection Vote from home or on mobile data, one person at a time
A café, hotel or event venue Guests share public Wi-Fi Vote later from your own connection
Mobile data Some carriers route many phones through shared addresses Retry later, or from home Wi-Fi; ask the organizer if it persists
A shared tablet or family computer One device for several people One vote per device; someone else uses their own phone

How to read the table

The honest option is always something a genuine supporter can do alone, on their own device, without altering anything. Where the limit still blocks a person who has not voted, the answer is a message to the organizer, not a trick. We show you how to write that message in the last section.

Get a plan for your contest

Send the contest link and a contact. We reply with a plan and the next step.

Which workarounds are honest, and which ones do we refuse?

Honest options respect the rule that each person votes once. Refused options exist to get an extra vote or to hide where a vote comes from.

Honest

  • Each supporter votes on their own phone, on whichever connection they normally use.
  • Colleagues and family members vote at different times and, where possible, from different places such as home and mobile data.
  • You ask the organizer, in writing, whether a school, a workplace or a venue can be accommodated, and what the rules say about it.
  • You tell groups the rules up front, so nobody is surprised by an already-voted message.

Refused

  • VPNs, proxies and any tool that changes or hides where a vote comes from.
  • Clearing cookies, switching to private windows or resetting a device to vote again.
  • Passing one phone around a room, or borrowing several devices to cast extra votes.
  • Running a voting session where a crowd votes together from one connection.

We do not use or suggest any of the refused items, and we do not accept projects that need them. The no-bots policy covers the whole boundary, and the page on projects we decline explains what happens when a project depends on them.

How do you word the ask for families, classrooms and offices?

Say that each person votes on their own phone, once, and that a block is possible when people share a connection. Then tell them what to do about it.

For a family or neighbourhood chat:

Please vote for my entry on your own phone: [entry link]. If it says a vote has already come from your network, try again later or on mobile data, and tell me if it still does not work. One vote per person, please.

For an office or club:

Vote from your own phone, one at a time. If someone nearby has just voted and you are blocked, try later from home.

Questions to ask before you send to a shared network

  • Is this group likely to sit on one connection, such as a classroom or open-plan floor?
  • Can they vote at different times or from different places?
  • Does anyone in the group already know the rules?
  • Have you got the organizer's answer on any exception?

If the answers are no, hold the ask until they are yes. More variants are in the templates for asking people to vote, and community, email and messenger outreach covers consent-based group messages.

What about a school assembly, a club night or an office push?

Do not run them as a vote-together moment. A room of people on one connection is the exact case the limit was built to catch, and the votes that matter may be refused.

An illustrative example, not a real client: a school club wants its members to vote for a team entry. The tempting plan is a lunchtime session in the computer room. The better plan is to hand out the link and the rules, ask each member to vote at home on their own phone, and remind them the next morning. Nobody is blocked, nobody is tempted to find a trick, and the club learns who needs help with the steps.

Events

At a club night or a launch event, use a printed card or a screen with the link and a short sentence on how to vote. Invite people to vote later, from their own connection. The event creates the interest; the vote happens elsewhere.

Schools and minors

When young people are involved, a parent or guardian must agree to the entry and the promotion. See beauty, kids, pets and school contests for the way we handle consent before any outreach begins.

Get a plan for your contest

Send the contest link and a contact. We reply with a plan and the next step.

How do you measure votes that a limit swallows?

By collecting reports by group and comparing them with visits and the counter.

The contest will not tell you how many votes it refused, so you build the picture from three sources:

  • Tagged visits per group: families, school, office, public.
  • The entry counter, written down before and after each wave.
  • Blocked reports: a short note from supporters who met an already-voted message, with their group and what they tried next.

Reading the pattern

If blocked reports cluster in one group, such as an office, the limit is catching that group and the ask needs to change for them: different timing, a note about mobile data, or a request to the organizer. If blocked reports are spread everywhere, the issue may be the way the contest identifies devices, and the right step is to write to the organizer with examples.

We do not push supporters to reduce the blocked count by any means other than honest ones. A lower number achieved through tricks is worse than a higher number of blocked genuine votes, because the entry can be removed. How we read results describes the reporting we do, and the calendar shows how to stagger waves.

Where do the limits of this protection sit, and what should you send us?

How a contest recognises a network or a device, and what it does with shared connections, sits entirely with the organizer. We can test what is visible and report what supporters experience, but we cannot see inside the method, and we will not claim to. Where a limit blocks genuine supporters, we draft the message to the organizer, listing who is affected and what you are asking for.

To begin, send the contest link, the rules, your entry, the deadline and a note on where your supporters are likely to connect from through the free contest analysis. We reply with a read of the rules, separate asks for each group and a draft message to the organizer if one is needed. For the other checks a contest might use, see the overview of voting protection types.

How it works

  1. Read what the rules say about the limitNote whether the limit is per network, per device or both, and what the rules say about shared connections.
  2. Map where supporters connect fromSort your audience into homes, schools, offices, venues and mobile users.
  3. Write an ask for each groupEach person votes alone on their own phone, with a line on what to do if blocked.
  4. Stagger the wavesSend groups on different days so that no connection is asked to deliver everyone at once.
  5. Collect blocked reports by groupCompare them with visits and the counter, and write to the organizer if a whole group is affected.

Frequently asked questions

Why does it say I have already voted when I have not?

Someone else on your connection or device may have voted, or the contest may be treating you as the same visitor. Try again later, from your own phone on a different connection, and tell the organizer if it persists. Do not try to change or hide your connection.

Can I vote from my phone and my laptop?

Only if the rules explicitly allow one vote per device. In most contests the aim is one vote per person, so a second device does not give you a second vote. Read the rules, and when in doubt, vote once.

Is a VPN a fair way around an IP limit?

No. A VPN changes or hides where your vote comes from, which is what the limit is meant to detect. We do not use or recommend it, and an entry that benefits from one risks being removed. Ask the organizer for a proper solution instead.

Can my whole office vote from one Wi-Fi network?

Probably not all of them. Ask colleagues to vote one at a time from their own phones, and where possible from home or mobile data. If your company wants to take part as a group, ask the organizer in writing whether the rules allow for it.

Does mobile data solve the shared-network problem?

Sometimes. A phone on its own mobile connection is a different case from a phone on shared Wi-Fi, but some mobile networks route many phones together, so blocks still occur. Try again later or from home, and report persistent blocks to the organizer.

How do I ask the organizer for a school exception?

Write briefly. Name the contest and the entry, explain that students share one school connection, state that each student will vote once on their own device, and ask whether the rules allow it. Attach the rules link and a screenshot of the block.

Do you promise votes from groups on shared networks?

No. We promise the agreed work: the mapping, the wording, the launch, the reporting and projections that are labelled as projections. Whether a shared connection can vote at all depends on the organizer's method, which we cannot see or change.

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