diff --git a/andi/help/alerts.html b/andi/help/alerts.html
index a8d18eeb..e81dc6c2 100644
--- a/andi/help/alerts.html
+++ b/andi/help/alerts.html
@@ -549,7 +549,7 @@ <h3>What causes this?</h3>
 	Often, this is the result of a developer copying and pasting
 	an element and forgetting to change the <code>id</code>.
 	It's possible that a developer may not know that <code>id</code>s
-	<a href="http://www.w3.org/TR/2011/WD-html5-20110525/elements.html#the-id-attribute" target="w3c">must be unique according to W3C standards</a>.
+	<a href="https://html.spec.whatwg.org/multipage/dom.html#the-id-attribute" target="w3c">must be unique according to W3C standards</a>.
 	</p>
 
 	<h3>What should be done?</h3>
@@ -1004,8 +1004,8 @@ <h3>Why is this an accessibility concern?</h3>
 	<h3>What should be done?</h3>
 	<p>
 	Correct the structure to abide by the standards for an
-	<a href="http://www.w3.org/TR/wai-aria-practices-1.1/#table" target="_blank">ARIA table</a>, or
-	<a href="http://www.w3.org/TR/wai-aria-practices-1.1/#grid" target="_blank">ARIA grid</a>.
+	<a href="https://www.w3.org/WAI/ARIA/apg/patterns/table/" target="_blank">ARIA table</a>, or
+	<a href="https://www.w3.org/WAI/ARIA/apg/patterns/grid/" target="_blank">ARIA grid</a>.
 	</p>
 	</div>
 	</section>
@@ -3455,7 +3455,7 @@ <h3>Why did ANDI alert this?</h3>
 	</p>
 	<h3>Why is this an accessibility concern?</h3>
 	<p>
-	A screen reader will assume the heading level to be level 2 since 2 is the <a href="http://www.w3.org/TR/core-aam-1.1/#document-handling_author-errors" target="_blank">default aria-level</a>.
+	A screen reader will not assume a default heading level if aria-level is not specified.
 	</p>
 	<h3>What should be done?</h3>
 	<p>
@@ -3554,7 +3554,7 @@ <h3>What should be done?</h3>
 	and the primary foreground color of the text using a color selector tool (<a href="https://github.com/ThePacielloGroup/CCAe" target="_blank">Colour Contrast Analyser Installation</a>).
 	</p>
 	<p>
-	The <a href="http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
+	The <a href="https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
 	</p>
 	<div class="example">
 		<ul>
@@ -3591,7 +3591,7 @@ <h3>What should be done?</h3>
 	and the primary foreground color of the text using a color selector tool (<a href="https://github.com/ThePacielloGroup/CCAe" target="_blank">Colour Contrast Analyser Installation</a>).
 	</p>
 	<p>
-	The <a href="http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
+	The <a href="https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
 	</p>
 	<div class="example">
 		<ul>
@@ -3636,7 +3636,7 @@ <h3>What should be done?</h3>
 	and the primary foreground color of the text using a color selector tool (<a href="https://github.com/ThePacielloGroup/CCAe" target="_blank">Colour Contrast Analyser Installation</a>).
 	</p>
 	<p>
-	The <a href="http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
+	The <a href="https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
 	</p>
 	<div class="example">
 		<ul>
@@ -3736,7 +3736,7 @@ <h3>What should be done?</h3>
 	Adjust the text color and/or the background color of this element so that the contrast ratio is at or above the minimum required contrast ratio.
 	</p>
 	<p>
-	The <a href="http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
+	The <a href="https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a> is as follows:
 	</p>
 		<div class="example">
 			<ul>
@@ -3819,7 +3819,7 @@ <h3>Why did ANDI alert this?</h3>
 	Disabled elements (<code>disabled="disabled"</code>) were found on the page.
 	Disabled elements are inactive user interface components
 	and do not have color contrast requirements according to the
-	<a href="http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a>.
+	<a href="https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG AA Contrast Ratio requirement</a>.
 	</p>
 	</div>
 	</section>
diff --git a/andi/help/faq.html b/andi/help/faq.html
index f5d51431..217586c6 100644
--- a/andi/help/faq.html
+++ b/andi/help/faq.html
@@ -359,7 +359,7 @@ <h2>Troubleshooting</h2>
 				uses the DOM (Document Object Model) to calculate the Output
 				according to the <a href="https://w3c.github.io/accname/" target="_blank">Accesible Name Computation</a>.
 				Whereas, screen readers rely on more layers than just the DOM.
-				Layers such as the browser's <a href="http://www.w3.org/TR/core-aam-1.1/#intro_aapi" target="_blank">Accessibility API</a>,
+				Layers such as the browser's <a href="https://www.w3.org/TR/core-aam-1.1/#intro_aapi" target="_blank">Accessibility API</a>,
 				the accessibility tree, the DOM, their own "tutor text" phrasings.
 				</li>
 				<li>
diff --git a/andi/help/howtouse.html b/andi/help/howtouse.html
index 51b01e1a..50c0fe91 100644
--- a/andi/help/howtouse.html
+++ b/andi/help/howtouse.html
@@ -262,7 +262,7 @@ <h3 id="lby-ANDIOutput">ANDI Output</h3>
 	<a href="developerguide.html#NamingAndDescribing">accessible name</a>
 	and <a href="developerguide.html#NamingAndDescribing">accessible description</a>.
 	It will also include some phrasings depending on the presence of certain 
-	<a href="http://www.w3.org/TR/wai-aria/states_and_properties" target="_blank">states and properties</a>
+	<a href="https://www.w3.org/TR/wai-aria/states_and_properties#introstates" target="_blank">states and properties</a>
 	plus any associating <a href="#AccessibilityAlerts">Accessibility Alerts</a> that <span class="brand">ANDI</span> has detected.
 	</p>
 
diff --git a/andi/help/install.html b/andi/help/install.html
index 0b6f13bb..1e2bd094 100644
--- a/andi/help/install.html
+++ b/andi/help/install.html
@@ -8,7 +8,7 @@
 <!-- JSON-LD Structured Data -->
 <script type="application/ld+json">
 {
-	"@context" : "http://schema.org",
+	"@context" : "https://schema.org",
 	"@type" : "WebApplication",
 	"name" : "ANDI",
 	"image" : "https://www.ssa.gov/accessibility/andi/help/images/andi-overview.png",
@@ -17,7 +17,7 @@
 		"name" : "Social Security Administration"
 	},
 	"applicationCategory" : "Accessibility Testing Tool",
-	"featureList" : "acessibility testing, accessible name, accessible description, alternative text, tab order, color contrast, page structure, ARIA, screen reader",
+	"featureList" : "accessibility testing, accessible name, accessible description, alternative text, tab order, color contrast, page structure, ARIA, screen reader",
 	"browserRequirements" : "Chrome, Safari, Edge Chromium, Firefox, Internet Explorer, Opera, Edge Legacy",
 	"operatingSystem" : "Windows, macOS",
 	"isAccessibleForFree" : "true"
diff --git a/andi/help/modules.html b/andi/help/modules.html
index 837fb5e2..9eec8ef6 100644
--- a/andi/help/modules.html
+++ b/andi/help/modules.html
@@ -927,7 +927,7 @@ <h3 id='cANDI-contrastRatio'>Contrast Ratio</h3>
 			The Min Req is calculated using 
 			the text color and background color, the font-size, and the font weight.
 			For additional information on contrast ratio requirements
-			refer to the <a href="http://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG Contrast Guidelines</a>.
+			refer to the <a href="https://www.w3.org/TR/UNDERSTANDING-WCAG20/visual-audio-contrast-contrast.html" target="_blank">WCAG Contrast Guidelines</a>.
 			</p>
 				<div class="example" id='cANDI-contrastResult'>
 				<dl>