JSFiddle - React, Tailwind, and code Playground

HTML

<button id="unqOrMsgTestFire">Check rows for redundancy</button>
<button id="spawn">Spawn lots of rows</button>

<hr/>
    <p class="unique">Unique</p>|<p class="notUnique">Not Unique</p>
<hr/>

<table id="binning">
    <thead>
        <tr>
            <th>Server</th>
            <th>Channel</th>
            <th>Bin Type</th>
            <th>Bin Name</th>
            <th>Population</th>
            <th>Check</th>
        </tr>
    </thead>
    <tbody>
        <tr>
            <td col="server" >Server 1</td>
            <td col="channel" >Channel A</td>
            <td col="type" >animal</td>
            <td col="name" >cat</td>
            <td col="ndocs" >15</td>
            <td col="check" rowid="animalcat" ></td>
        </tr>
        <tr>
            <td col="server" >Server 2</td>
            <td col="channel" >Channel A</td>
            <td col="type" >animal</td>
            <td col="name" >cat</td>
            <td col="ndocs" >12</td>
            <td col="check" rowid="animalcat" ></td>
        </tr>
        <tr>
            <td col="server" >Server 1</td>
            <td col="channel" >Channel A</td>
            <td col="type" >animal</td>
            <td col="name" >dog</td>
            <td col="ndocs" >12</td>
            <td col="check" rowid="animaldog" ></td>
        </tr>        
    </tbody>
</table>

CSS

/* css is irrelevant here this is just for clarity! */

#binning tbody{
    color:#606060;
}

#binning td, th {
    padding:4px;
    border: 1px solid black;
}

.notUnique {
    color: #d90000;
}

.unique {
    color: #758811;
}

p {
    display:inline;
}

JavaScript

$(function(){ //this is just to fire the function
    $("#unqOrMsgTestFire").click(unqOrMsgTest);
    $("#spawn").click(function(){
        var blueprint = $("#binning tbody tr").first();
        for(var i = 0; i < 1000; i++)
            blueprint.clone().appendTo("#binning tbody").find('td[rowid]').attr('rowid', Math.floor(Math.random()*500));
    });
});
    
function unqOrMsgTest() {
    console.profile();
    var toCheck = $("#binning > tbody > tr > td[col=check]"),
        ignore = {},
        curId,
        currentlyProcessing,
        rowsAmount,
        i;
    
    i = toCheck.length - 1;
    while( i >= 0 ) {
        curId = toCheck.eq(i).attr("rowid");
        if( !(curId in ignore) ) {
            ignore[curId] = undefined;
        
            currentlyProcessing = $("#binning > tbody > tr > td[rowid=" + curId  + "]");
        
            rowsAmount = currentlyProcessing.length;
        
            currentlyProcessing
                .text( rowsAmount )
                .parent().attr('class', rowsAmount > 1 ? "notUnique" : "unique");
        }
        i--;
    }
    console.profileEnd();
}