SharePoint Site Collections and Subsites Inventory Report

Requirement: Get a list of all site collections and their subsites in an HTML formatted report!

PowerShell Script to generate an HTML report for Site Collections & Subsites:

Are you looking for a way to generate an inventory report of all your SharePoint site collections and subsites? In this blog post, I will show you how to use the PowerShell script to generate a report of all sites in your SharePoint environment. This report is helpful for quickly creating a detailed inventory of all your SharePoint sites.

#Add SharePoint Snapin
if ( (Get-PSSnapin -Name "Microsoft.SharePoint.PowerShell" -ErrorAction SilentlyContinue) -eq $null ) {
        Add-PSSnapin "Microsoft.SharePoint.PowerShell"

# Configuration Variables
$WebApplicationURL = ""
$ReportOutput = "C:\SiteCollectionsAndSites.html"

#Get all Site Collections from the webapplication
$SitesColl= Get-SPWebApplication $WebApplicationURL | Get-SPSite -Limit All

<!-- Sal - Javascript Function to apply formatting -->
<script type="text/javascript">
function altRows(id){
  var table = document.getElementById(id);  
  var rows = table.getElementsByTagName("tr");     
  for(i = 0; i < rows.length; i++){          
   if(i % 2 == 0){
    rows[i].className = "evenrowcolor";
    rows[i].className = "oddrowcolor";
<!-- CSS Styles for Table TH, TR and TD -->
<style type="text/css">
body{ font-family: Calibri; height: 12pt; }
table.altrowstable {
 border-collapse: collapse; font-family: verdana,arial,sans-serif;
 font-size:11px; color:#333333; border-width: 1px; border-color: #a9c6c9;
 border: b1a0c7 0.5pt solid; /*Sal Table format */  
table.altrowstable th {
 border-width: 1px; padding: 5px; background-color:#8064a2;
 border: #b1a0c7 0.5pt solid; font-family: Calibri; height: 15pt; 
 color: white;  font-size: 11pt;  font-weight: 700;  text-decoration: none;
table.altrowstable td {
 border: #b1a0c7 0.5pt solid; font-family: Calibri; height: 15pt; color: black; 
 font-size: 11pt; font-weight: 400; text-decoration: none; 
.oddrowcolor{ background-color: #e4dfec; }
.evenrowcolor{ background-color:#FFFFFF; }

 #Add the HTML File with CSS into the Output report
$Content = $HTMLTemplate > $ReportOutput
"<h2> Site Collections & Subsites Report </h2>" >> $ReportOutput  
#Table of Contents
"<h3> Summary of Site Collections</h3> <table class='altrowstable' id='alternatecolor' cellpadding='5px'><tr><th>Site Collection Name </th><th> URL </th><th> No.Of Subsites </th></tr>" >> $ReportOutput

#Loop throuh each site collection 
foreach($Site in $SitesColl) 
    "<tr> <td> <a href='#$($Site.Rootweb.Title.ToLower())'>$($Site.Rootweb.Title)</a> </td><td> $($Site.Rootweb.URL)</td> <td> $($Site.AllWebs.Count) </td></tr>" >> $ReportOutput
"</table><br/><hr>" >> $ReportOutput

#Get All sub Sites
foreach($Site in $SitesColl) 
    "<h4> Subsites of Site Collection: <a name='$($Site.RootWeb.Title.ToLower())' href='$($Site.RootWeb.URL)' target='_blank'>$($Site.RootWeb.Title)</a> </h4> ">> $ReportOutput
    "<table class='altrowstable' id='alternatecolor' cellpadding='5px'><tr><th>Site Name </th><th> Site URL </th><th> Last Modified </th></tr>" >> $ReportOutput
    foreach($Web in $Site.AllWebs)
      "<tr> <td>$($web.Title)</td><td> <a href='$($web.URL)' target='_blank'>$($web.URL)</a></td> <td> $($web.lastitemmodifieddate) </td></tr>" >> $ReportOutput
    "</table></br> " >>$ReportOutput
} #Web
"</body></html>" >>$ReportOutput

Write-host "`n Site Collections & Subsites Report generated successfully at "$ReportOutput

Report Output:

SharePoint Site Collections and Subsites Inventory Report

Salaudeen Rajack

Salaudeen Rajack - Information Technology Expert with Two-decades of hands-on experience, specializing in SharePoint, PowerShell, Microsoft 365, and related products. He has held various positions including SharePoint Architect, Administrator, Developer and consultant, has helped many organizations to implement and optimize SharePoint solutions. Known for his deep technical expertise, He's passionate about sharing the knowledge and insights to help others, through the real-world articles!

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