diff --git a/frontend/src/app/components/blocks-list/blocks-list.component.html b/frontend/src/app/components/blocks-list/blocks-list.component.html
index e31214443..a27d8fbeb 100644
--- a/frontend/src/app/components/blocks-list/blocks-list.component.html
+++ b/frontend/src/app/components/blocks-list/blocks-list.component.html
@@ -29,7 +29,7 @@
             <div class="tooltip-custom">
               <a class="clear-link" [routerLink]="['/mining/pool' | relativeUrl, block.extras.pool.slug]">
                 <img width="22" height="22" src="{{ block.extras.pool['logo'] }}"
-                  onError="this.src = './resources/mining-pools/default.svg'">
+                  onError="this.src = './resources/mining-pools/default.svg'" [alt]="'Logo of ' + block.extras.pool.name + ' mining pool'">
                 <span class="pool-name">{{ block.extras.pool.name }}</span>
               </a>
               <span *ngIf="!widget" class="tooltiptext badge badge-secondary scriptmessage">{{ block.extras.coinbaseRaw | hex2ascii }}</span>
diff --git a/frontend/src/app/components/master-page/master-page.component.html b/frontend/src/app/components/master-page/master-page.component.html
index 98e490f37..1daabcfac 100644
--- a/frontend/src/app/components/master-page/master-page.component.html
+++ b/frontend/src/app/components/master-page/master-page.component.html
@@ -3,7 +3,7 @@
   <nav class="navbar navbar-expand-md navbar-dark bg-dark">
   <a class="navbar-brand" [routerLink]="['/' | relativeUrl]" style="position: relative;">
     <ng-container *ngIf="{ val: connectionState$ | async } as connectionState">
-      <img [src]="officialMempoolSpace ? './resources/mempool-space-logo.png' : './resources/mempool-logo.png'" height="35" width="140" class="logo" [ngStyle]="{'opacity': connectionState.val === 2 ? 1 : 0.5 }">
+      <img [src]="officialMempoolSpace ? './resources/mempool-space-logo.png' : './resources/mempool-logo.png'" height="35" width="140" class="logo" [ngStyle]="{'opacity': connectionState.val === 2 ? 1 : 0.5 }" alt="The Mempool Open Source Project logo">
       <div class="connection-badge">
         <div class="badge badge-warning" *ngIf="connectionState.val === 0" i18n="master-page.offline">Offline</div>
         <div class="badge badge-warning" *ngIf="connectionState.val === 1" i18n="master-page.reconnecting">Reconnecting...</div>
@@ -13,16 +13,16 @@
 
   <div (window:resize)="onResize($event)" ngbDropdown class="dropdown-container" *ngIf="env.TESTNET_ENABLED || env.SIGNET_ENABLED || env.LIQUID_ENABLED || env.BISQ_ENABLED || env.LIQUID_TESTNET_ENABLED">
     <button ngbDropdownToggle type="button" class="btn btn-secondary dropdown-toggle-split" aria-haspopup="true">
-      <img src="./resources/{{ network.val === '' ? 'bitcoin' : network.val }}-logo.png" style="width: 25px; height: 25px;" class="mr-1">
+      <img src="./resources/{{ network.val === '' ? 'bitcoin' : network.val }}-logo.png" style="width: 25px; height: 25px;" class="mr-1" [alt]="(network.val === '' ? 'bitcoin' : network.val) + ' logo'">
     </button>
     <div ngbDropdownMenu [ngClass]="{'dropdown-menu-right' : isMobile}">
-      <button ngbDropdownItem class="mainnet" routerLink="/"><img src="./resources/bitcoin-logo.png" style="width: 30px;" class="mr-1"> Mainnet</button>
-      <button ngbDropdownItem *ngIf="env.SIGNET_ENABLED" class="signet" [class.active]="network.val === 'signet'" routerLink="/signet"><img src="./resources/signet-logo.png" style="width: 30px;" class="mr-1"> Signet</button>
-      <button ngbDropdownItem *ngIf="env.TESTNET_ENABLED" class="testnet" [class.active]="network.val === 'testnet'" routerLink="/testnet"><img src="./resources/testnet-logo.png" style="width: 30px;" class="mr-1"> Testnet</button>
+      <button ngbDropdownItem class="mainnet" routerLink="/"><img src="./resources/bitcoin-logo.png" style="width: 30px;" class="mr-1" alt="bitcoin logo"> Mainnet</button>
+      <button ngbDropdownItem *ngIf="env.SIGNET_ENABLED" class="signet" [class.active]="network.val === 'signet'" routerLink="/signet"><img src="./resources/signet-logo.png" style="width: 30px;" class="mr-1" alt="signet logo"> Signet</button>
+      <button ngbDropdownItem *ngIf="env.TESTNET_ENABLED" class="testnet" [class.active]="network.val === 'testnet'" routerLink="/testnet"><img src="./resources/testnet-logo.png" style="width: 30px;" class="mr-1" alt="testnet logo"> Testnet</button>
       <h6 *ngIf="env.LIQUID_ENABLED || env.BISQ_ENABLED" class="dropdown-header" i18n="master-page.layer2-networks-header">Layer 2 Networks</h6>
-      <a [href]="env.BISQ_WEBSITE_URL + urlLanguage" ngbDropdownItem *ngIf="env.BISQ_ENABLED" class="bisq"><img src="./resources/bisq-logo.png" style="width: 30px;" class="mr-1"> Bisq</a>
-      <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage" ngbDropdownItem *ngIf="env.LIQUID_ENABLED" class="liquid" [class.active]="network.val === 'liquid'"><img src="./resources/liquid-logo.png" style="width: 30px;" class="mr-1"> Liquid</a>
-      <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage + '/testnet'" ngbDropdownItem *ngIf="env.LIQUID_TESTNET_ENABLED" class="liquidtestnet" [class.active]="network.val === 'liquid'"><img src="./resources/liquidtestnet-logo.png" style="width: 30px;" class="mr-1"> Liquid Testnet</a>
+      <a [href]="env.BISQ_WEBSITE_URL + urlLanguage" ngbDropdownItem *ngIf="env.BISQ_ENABLED" class="bisq"><img src="./resources/bisq-logo.png" style="width: 30px;" class="mr-1" alt="bisq logo"> Bisq</a>
+      <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage" ngbDropdownItem *ngIf="env.LIQUID_ENABLED" class="liquid" [class.active]="network.val === 'liquid'"><img src="./resources/liquid-logo.png" style="width: 30px;" class="mr-1" alt="liquid mainnet logo"> Liquid</a>
+      <a [href]="env.LIQUID_WEBSITE_URL + urlLanguage + '/testnet'" ngbDropdownItem *ngIf="env.LIQUID_TESTNET_ENABLED" class="liquidtestnet" [class.active]="network.val === 'liquid'"><img src="./resources/liquidtestnet-logo.png" style="width: 30px;" class="mr-1" alt="liquid testnet logo"> Liquid Testnet</a>
     </div>
   </div>
 
diff --git a/frontend/src/app/components/pool-ranking/pool-ranking.component.html b/frontend/src/app/components/pool-ranking/pool-ranking.component.html
index 12b5ffb2a..155b3e95d 100644
--- a/frontend/src/app/components/pool-ranking/pool-ranking.component.html
+++ b/frontend/src/app/components/pool-ranking/pool-ranking.component.html
@@ -93,8 +93,9 @@
       <tbody *ngIf="(miningStatsObservable$ | async) as miningStats">
         <tr *ngFor="let pool of miningStats.pools">
           <td class="d-none d-md-block">{{ pool.rank }}</td>
-          <td class="text-right"><img width="25" height="25" src="{{ pool.logo }}"
-              onError="this.src = './resources/mining-pools/default.svg'"></td>
+          <td class="text-right">
+            <img width="25" height="25" src="{{ pool.logo }}" [alt]="pool.name + ' mining pool logo'" onError="this.src = './resources/mining-pools/default.svg'">
+          </td>
           <td class=""><a [routerLink]="[('/mining/pool/' + pool.slug) | relativeUrl]">{{ pool.name }}</a></td>
           <td class="" *ngIf="this.miningWindowPreference === '24h' && !isLoading">{{ pool.lastEstimatedHashrate }} {{
             miningStats.miningUnits.hashrateUnit }}</td>
diff --git a/frontend/src/app/components/pool/pool.component.html b/frontend/src/app/components/pool/pool.component.html
index be7437363..736c21682 100644
--- a/frontend/src/app/components/pool/pool.component.html
+++ b/frontend/src/app/components/pool/pool.component.html
@@ -5,7 +5,7 @@
   <!-- Pool overview -->
   <div *ngIf="poolStats$ | async as poolStats; else loadingMain">
     <div style="display:flex" class="mb-3">
-      <img width="50" height="50" src="{{ poolStats['logo'] }}"
+      <img width="50" height="50" src="{{ poolStats['logo'] }}" [alt]="poolStats.pool.name + ' mining pool logo'"
         onError="this.src = './resources/mining-pools/default.svg'" class="mr-3">
       <h1 class="m-0 pt-1 pt-md-0">{{ poolStats.pool.name }}</h1>
     </div>