diff --git a/content/_index.md b/content/_index.md
index ea93a90..251c6a5 100644
--- a/content/_index.md
+++ b/content/_index.md
@@ -13,7 +13,7 @@ sitemap:
 Seirdy's Home
 =============
 
-I'm <a itemprop="url" href="https://seirdy.one" rel="author home canonical me" class="u-url u-uid url"> {{% indieweb-icon %}} <span itemprop="name" class="p-name fn n"> <span itemprop="givenName" class="p-given-name given-name">Rohan</span> <span itemprop="familyName" class="p-family-name family-name">Kumar</span></span></a>, a.k.a. <span itemprop="alternateName nickname" class="p-nickname nickname">Seirdy</span> (online handle).
+I'm <a itemprop="url" href="https://seirdy.one" rel="author home canonical me" class="u-url u-uid url"> {{% indieweb-icon %}} <span itemprop="name" class="p-name fn n"> <span itemprop="givenName" class="p-given-name given-name">Rohan</span> <span itemprop="familyName" class="p-family-name family-name">Kumar</span></span></a>, a.k.a. <span itemprop="alternateName" class="p-nickname nickname">Seirdy</span> (online handle).
 
 Other versions of this website
 ------------------------------
diff --git a/content/posts/floss-security.md b/content/posts/floss-security.md
index bdd2eee..fced8c3 100644
--- a/content/posts/floss-security.md
+++ b/content/posts/floss-security.md
@@ -7,6 +7,7 @@ outputs:
     - gemtext
 footnote_heading: Notes
 featured: 4
+techarticle: true
 title: "The right thing for the wrong reasons: FLOSS doesn't imply security"
 ---
 <section role="doc-preface" itemprop="backstory">
diff --git a/content/posts/git-workflow-0.md b/content/posts/git-workflow-0.md
index e5c744f..6a3c1cd 100644
--- a/content/posts/git-workflow-0.md
+++ b/content/posts/git-workflow-0.md
@@ -1,5 +1,6 @@
 ---
 date: "2020-11-17T13:13:03-08:00"
+lastmod: "2020-11-19T12:23:18-08:00"
 description: A seires on setting up resilient git-based project workflows, free of vendor lock-in.
 outputs:
     - html
@@ -7,6 +8,7 @@ outputs:
 tags:
     - git
     - foss
+techarticle: true
 title: "Resilient Git, Part 0: Introduction"
 ---
 
diff --git a/content/posts/git-workflow-1.md b/content/posts/git-workflow-1.md
index 6317274..82cd3c4 100644
--- a/content/posts/git-workflow-1.md
+++ b/content/posts/git-workflow-1.md
@@ -1,5 +1,6 @@
 ---
 date: "2020-11-18T18:31:15-08:00"
+lastmod: "2020-11-19T12:23:18-08:00"
 description: Efficient redundancy via repository mirroring with nothing but git.
 outputs:
     - html
@@ -7,6 +8,7 @@ outputs:
 tags:
     - git
     - foss
+techarticle: true
 title: "Resilient Git, Part 1: Hydra Hosting"
 ---
 <div role="note">
diff --git a/content/posts/website-best-practices.md b/content/posts/website-best-practices.md
index 6642a0d..10dd402 100644
--- a/content/posts/website-best-practices.md
+++ b/content/posts/website-best-practices.md
@@ -17,6 +17,7 @@ sitemap:
 featured: 2
 image: "serenity-4x.png"
 image_alt: "Retro-looking browser with bitmap fonts showing this article's \"code snippet 4\"."
+techarticle: true
 title: "Best practices for inclusive textual websites"
 ---
 <section role="doc-preface">
@@ -1042,7 +1043,7 @@ Where long inline `<code>` elements can trigger horizontal scrolling, consider a
 
 ### Keeping text together
 
-Soft hyphens are great for splitting up text, but some text should stay together. The phrase "10&nbsp;cm", for instance, would flow poorly if "10" and "cm" appeared on separate lines. Splitting text becomes especially painful on narrow viewports. A non-breaking space keeps the surrounding text from being re-flowed. Use the `&nbsp;` HTML entity instead of a space: `10&nbsp;cm`. <span itemprop="mentions" itemscope itemtype="https://schema.org/Book">{{<cited-work name="Practical Typography" url="https://practicaltypography.com/">}} by {{<indieweb-person first-name="Matthew" last-name="Butterick" url="https://mbtype.com/bio.html">}},[^17] a typographer,</span> describes [where to use the non-breaking space](https://briefs.video/videos/is-progressive-enhancement-dead-yet/) in more detail.
+Soft hyphens are great for splitting up text, but some text should stay together. The phrase "10&nbsp;cm", for instance, would flow poorly if "10" and "cm" appeared on separate lines. Splitting text becomes especially painful on narrow viewports. A non-breaking space keeps the surrounding text from being re-flowed. Use the `&nbsp;` HTML entity instead of a space: `10&nbsp;cm`. <span itemprop="mentions" itemscope itemtype="https://schema.org/Book">{{<cited-work name="Practical Typography" url="https://practicaltypography.com/">}} by {{<indieweb-person itemprop="author" first-name="Matthew" last-name="Butterick" url="https://mbtype.com/bio.html">}},[^17] a typographer</span>, describes [where to use the non-breaking space](https://briefs.video/videos/is-progressive-enhancement-dead-yet/) in more detail.
 
 One exception to the rules from <cite>Practical Typography</cite>: don't use a non-breaking space if it would trigger two-dimensional scrolling on a narrow viewport. Between broken text and two-dimensional scrolling, broken text is the lesser evil. I personally set a cutoff at 2.5&nbsp;cm (1&nbsp;inch) at 125% zoom.
 
diff --git a/layouts/_default/baseof.html b/layouts/_default/baseof.html
index 2a7f74b..b45ce12 100644
--- a/layouts/_default/baseof.html
+++ b/layouts/_default/baseof.html
@@ -1,7 +1,7 @@
 <!DOCTYPE html>
 <html lang={{- default "" .Site.LanguageCode }} prefix="og: https://ogp.me/ns# article: https://ogp.me/ns/article# cc: http://creativecommons.org/ns#">
 {{ partial "head.html" . -}}
-<body itemscope itemtype="https://schema.org/Blog https://schema.org/WebPage">
+<body itemscope itemtype="https://schema.org/WebPage">
 {{ partial "header.html" . -}}
 {{- block "main" . }}{{- end -}}
 {{ partialCached "footer.html" . }}
diff --git a/layouts/partials/footer.html b/layouts/partials/footer.html
index f14ed57..775d5f8 100644
--- a/layouts/partials/footer.html
+++ b/layouts/partials/footer.html
@@ -1,6 +1,6 @@
-<footer id="site-footer">
+<footer>
 	<p>
-		Copyright<span aria-hidden="true"> ©</span> <span itemprop="copyrightYear">{{now.Year}}</span> <span itemprop="copyrightHolder">{{- partial "indieweb-author.html" -}}</span>
+	Copyright<span aria-hidden="true"> ©</span> <time itemprop="copyrightYear" datetime="{{now.Year}}">{{now.Year}}</time> {{- partial "indieweb-author.html" -}}
 	</p>
 	<nav aria-label="site info">
 		<ul>
diff --git a/layouts/partials/header.html b/layouts/partials/header.html
index f98236a..ca27f6d 100644
--- a/layouts/partials/header.html
+++ b/layouts/partials/header.html
@@ -1,12 +1,20 @@
-<header id="banner" itemprop="hasPart" itemscope itemtype="https://schema.org/WPHeader">
+<header>
 	<nav aria-label="Global">
 		<ul>
 			{{- $currentPage := . -}}
+			{{- $canonicalRelPermalink := $currentPage.RelPermalink | replaceRE "^/~seirdy/" "/" }}
 			{{- $isHome := false -}}
-			{{- if eq $currentPage.Permalink .Site.BaseURL -}}
+			{{- if eq $currentPage.RelPermalink "/" -}}
 				{{- $isHome = true -}}
 			{{- end }}
-			<li itemprop="hasPart" itemscope itemtype="https://schema.org/SiteNavigationElement">
+			<li
+				{{ if $isHome -}}
+					itemprop="sameAs"
+				{{ else -}}
+					itemprop="isPartOf"
+				{{ end -}}
+				itemscope itemtype="https://schema.org/Blog https://schema.org/WebSite"
+				itemid="{{ .Site.Params.CanonicalBaseURL }}/">
 				<a rel="home" itemprop="url" href="{{ .Site.BaseURL }}"{{- if $isHome }} aria-current="page"{{- end -}}>
 					{{- if $isHome -}}
 						<strong itemprop="name">{{ .Site.Title }}</strong>
diff --git a/layouts/partials/posts.html b/layouts/partials/posts.html
index 49ede03..3b16d3d 100644
--- a/layouts/partials/posts.html
+++ b/layouts/partials/posts.html
@@ -2,11 +2,11 @@
 {{- if and (ne .Permalink .Site.BaseURL) (ne .RelPermalink "/") -}}
 	{{- $isStandalone = true -}}
 {{- end -}}
-{{- if $isStandalone }}
+{{- if $isStandalone -}}
 <main itemprop="mainEntity" class="h-feed hfeed" itemscope itemtype="https://schema.org/CompleteDataFeed">
 	<h1 class="p-name" itemprop="name headline" id="posts">Posts</h1>
 	<p>These are all of my posts, sorted by date (newest first).</p>
-{{- else  }}
+{{- else -}}
 <section class="h-feed hfeed" itemprop="hasPart" itemscope itemtype="https://schema.org/DataFeed">
 	<h2 class="p-name" itemprop="name" id="posts">Posts</h2>
 	<p>Here&rsquo;s a selection of my best posts, in featured order. To see the rest, visit <a href="/posts.html">my Posts page</a>.</p>
@@ -21,8 +21,9 @@
 			{{- $posts = sort (where $posts "Params.featured" ">" 0) "Params.featured" -}}
 		{{- end -}}
 		{{- range $posts -}}
-		<li>
-			<article class="h-entry hentry" itemprop="dataFeedElement" itemscope itemtype="https://schema.org/BlogPosting https://schema.org/DataFeedItem">
+		{{- $canonicalRelPermalink := .RelPermalink | replaceRE "^/~seirdy/" "/" -}}
+		<li itemprop="dataFeedElement" itemscope itemtype="https://schema.org/DataFeedItem https://schema.org/BlogPosting" itemid="{{ .Site.Params.CanonicalBaseURL }}{{ $canonicalRelPermalink }}">
+			<article class="h-entry hentry">
 				{{ if $isStandalone -}}
 				<h2
 				{{- else -}}
diff --git a/layouts/partials/wordcount.html b/layouts/partials/wordcount.html
index 75ccdb2..6a7f930 100644
--- a/layouts/partials/wordcount.html
+++ b/layouts/partials/wordcount.html
@@ -4,7 +4,7 @@
 {{- $displayCount = printf "%s thousand" $thousands -}}
 About
 {{- end }}
-<data value="{{ .WordCount }}" itemprop="wordCount">
+<data itemprop="wordCount" value="{{ .WordCount }}">
 	{{ $displayCount }}
 </data> words
 {{- with .ReadingTime -}}
diff --git a/layouts/posts/single.html b/layouts/posts/single.html
index de455eb..ad36044 100644
--- a/layouts/posts/single.html
+++ b/layouts/posts/single.html
@@ -1,7 +1,8 @@
 {{- define "main" -}}
 {{- $canonicalRelPermalink := .RelPermalink | replaceRE "^/~seirdy/" "/" }}
 {{- .Scratch.Set "codeIndex" 1 -}}
-<main itemprop="blogPost" itemscope itemtype="https://schema.org/BlogPosting" itemid="{{ .Site.Params.CanonicalBaseURL }}{{ $canonicalRelPermalink }}">
+<main itemprop="hasPart" itemscope itemtype="https://schema.org/BlogPosting{{ if .Params.techarticle }} https://schema.org/TechArticle{{ end }}" itemid="{{ .Site.Params.CanonicalBaseURL }}{{ $canonicalRelPermalink }}">
+	<link itemprop="isPartOf" href="{{ .Site.Params.CanonicalBaseURL }}/">
 	{{ partial "full-article.html" . }}
 	{{ partial "webmentions.html" . }}
 </main>
diff --git a/layouts/shortcodes/indieweb-author.html b/layouts/shortcodes/indieweb-author.html
index 7f5772f..fdb5572 100644
--- a/layouts/shortcodes/indieweb-author.html
+++ b/layouts/shortcodes/indieweb-author.html
@@ -23,7 +23,7 @@
 
 	(btw this is all made of <span> cuz it is supposed to be inline)
 -->
-<span itemprop="author" itemscope itemtype="https://schema.org/Person" itemid="https://seirdy.one/#seirdy" class="h-card p-author author vcard">
+<span itemprop="author copyrightHolder" itemscope itemtype="https://schema.org/Person" itemid="https://seirdy.one/#seirdy" class="h-card p-author author vcard">
 	<a itemprop="url" href="https://seirdy.one" rel="author home cc:attributionURL" class="u-url url" property="cc:attributionName">
 		{{ partial "indieweb-icon.html" -}}
 		<span itemprop="name" class="p-name fn n">
diff --git a/layouts/shortcodes/indieweb-icon.html b/layouts/shortcodes/indieweb-icon.html
index f97926b..0cbde63 100644
--- a/layouts/shortcodes/indieweb-icon.html
+++ b/layouts/shortcodes/indieweb-icon.html
@@ -1,10 +1,9 @@
 {{ $favicon := resources.Get "/favicon.png" -}}
 {{- $favicon_base64 := $favicon.Content | base64Encode -}}
 {{- $favicon_svg := resources.Get "/favicon.svg" | resources.Fingerprint "md5" -}}
-{{- $favicon_bigpng := resources.Get "/apple-touch-icon.png" | resources.Fingerprint "md5" -}}
 <img itemprop="image" class="u-photo photo" width="16" height="16" alt=""
 {{ if in site.BaseURL ".onion" -}}
-	src="data:image/png;base64,{{ $favicon_base64 }}" srcset="{{ $favicon_bigpng.RelPermalink }} 2x"
+	src="data:image/png;base64,{{ $favicon_base64 }}"
 {{- else -}}
 	src="{{ $favicon_svg.RelPermalink }}"
 {{- end -}}