diff --git a/src/components/Certifications.astro b/src/components/Certifications.astro
index b35bf69..c66f215 100644
--- a/src/components/Certifications.astro
+++ b/src/components/Certifications.astro
@@ -12,8 +12,8 @@ import { certifications, person } from '../data/profile';
         <h2 id="certifications-title">Proven on two clouds.</h2>
         <p class="lede">Certifications on AWS, Azure and Scrum, up to the professional level.</p>
       </div>
-      <a class="verify" href={person.credly} rel="noopener">
-        Verify on Credly →
+      <a class="verify" href={person.credly} rel="noopener" target="_blank">
+        Verify on Credly →<span class="sr-only"> (opens in a new tab)</span>
       </a>
     </div>
     {certifications.map(({ tier, items }, index) => (
diff --git a/src/components/Contact.astro b/src/components/Contact.astro
index 93bf970..f90ee19 100644
--- a/src/components/Contact.astro
+++ b/src/components/Contact.astro
@@ -24,18 +24,40 @@ const links = [
         <Brand name="email" />
         Send me an email
       </a>
-      <p>{person.email}</p>
+      {/* The address, copied in one tap; without JavaScript, plain text to select. */}
+      <p class="address">
+        <span class="plain">{person.email}</span>
+        <button
+          class="copy"
+          type="button"
+          data-email={person.email}
+          aria-label={`Copy the email address, ${person.email}`}
+        >
+          <span class="value">{person.email}</span>
+          <svg viewBox="0 0 24 24" aria-hidden="true">
+            <rect x="9" y="9" width="11" height="11" rx="2"></rect>
+            <path d="M5 15V6a2 2 0 0 1 2-2h8"></path>
+          </svg>
+          <span class="done" aria-hidden="true">
+            Copied
+          </span>
+        </button>
+        <span class="status sr-only" aria-live="polite"></span>
+      </p>
     </div>
     <ul class="links reveal">
       {links.map(({ name, label, href }) => (
         <li>
+          {/* Profiles open beside the site, so a visitor can come back to it. */}
           <a
             href={href}
             rel="noopener"
+            target={name === 'cv' ? undefined : '_blank'}
             download={name === 'cv' ? 'Terencio-Agozzino-CV.pdf' : undefined}
           >
             <Brand name={name} />
             {label}
+            {name !== 'cv' && <span class="sr-only"> (opens in a new tab)</span>}
           </a>
         </li>
       ))}
@@ -54,6 +76,27 @@ const links = [
   </div>
 </footer>
 
+<script>
+  const copy = document.querySelector<HTMLButtonElement>('.copy');
+  const status = document.querySelector('.address .status');
+  copy?.addEventListener('click', async () => {
+    try {
+      await navigator.clipboard.writeText(copy.dataset.email!);
+    } catch {
+      // No clipboard access: select it instead, ready for the visitor to copy.
+      getSelection()?.selectAllChildren(copy.querySelector('.value')!);
+      return;
+    }
+    copy.classList.add('copied');
+    if (status) status.textContent = 'Email address copied';
+    window.goatcounter?.count({ path: 'copy email', title: 'Copy email', event: true });
+    setTimeout(() => {
+      copy.classList.remove('copied');
+      if (status) status.textContent = '';
+    }, 2000);
+  });
+</script>
+
 <style>
   .contact {
     background: var(--closing);
@@ -103,13 +146,77 @@ const links = [
   }
 
   /* The address itself, for whoever would rather copy it. */
-  .email p {
+  .address {
     margin-top: 12px;
     font-size: 14px;
     color: var(--closing-soft);
+  }
+
+  .plain {
     user-select: all;
   }
 
+  .copy {
+    display: none;
+    position: relative;
+    align-items: center;
+    gap: 8px;
+    padding: 4px 8px;
+    border: 0;
+    border-radius: 8px;
+    background: none;
+    font: inherit;
+    color: inherit;
+    cursor: pointer;
+    transition:
+      color 0.2s,
+      background 0.2s;
+  }
+
+  :global(.js) .copy {
+    display: inline-flex;
+  }
+
+  :global(.js) .plain {
+    display: none;
+  }
+
+  /* Only where there is a pointer to hover with: on a phone, a tap would leave
+     the highlight behind. */
+  @media (hover: hover) {
+    .copy:hover:not(.copied) {
+      color: #ece8da;
+      background: rgb(236 232 218 / 0.08);
+    }
+  }
+
+  .copy svg {
+    width: 15px;
+    height: 15px;
+    fill: none;
+    stroke: currentColor;
+    stroke-width: 2;
+  }
+
+  /* "Copied" stands where the icon was for two seconds; the icon keeps its
+     room, so the address does not move. */
+  .done {
+    display: none;
+    position: absolute;
+    left: calc(100% - 23px);
+    font-weight: 600;
+    color: var(--gold);
+    white-space: nowrap;
+  }
+
+  .copy.copied svg {
+    visibility: hidden;
+  }
+
+  .copy.copied .done {
+    display: inline;
+  }
+
   .links {
     display: flex;
     justify-content: center;
diff --git a/src/components/Research.astro b/src/components/Research.astro
index 29a8d3d..1c49fdf 100644
--- a/src/components/Research.astro
+++ b/src/components/Research.astro
@@ -16,7 +16,7 @@ const me = `${person.firstName[0]}. ${person.lastName}`;
     </div>
     <div class="papers">
       {publications.map(({ venue, title, authors, url }) => (
-        <a class="paper reveal" href={url} rel="noopener">
+        <a class="paper reveal" href={url} rel="noopener" target="_blank">
           <span class="venue">{venue}</span>
           <h3>{title}</h3>
           <p>
@@ -28,6 +28,7 @@ const me = `${person.firstName[0]}. ${person.lastName}`;
             ))}
           </p>
           <span class="more">Read the paper →</span>
+          <span class="sr-only"> (opens in a new tab)</span>
         </a>
       ))}
     </div>
@@ -36,7 +37,12 @@ const me = `${person.firstName[0]}. ${person.lastName}`;
         <li class="reveal">
           <b>{title}</b>
           <span>{text}</span>
-          {url && <a href={url}>{link} →</a>}
+          {/* A paper or a PDF opens beside the site rather than replacing it. */}
+          {url && (
+            <a href={url} rel="noopener" target="_blank">
+              {link} →<span class="sr-only"> (opens in a new tab)</span>
+            </a>
+          )}
         </li>
       ))}
     </ul>
diff --git a/tests/site.spec.ts b/tests/site.spec.ts
index 7b8aa3a..8686d0b 100644
--- a/tests/site.spec.ts
+++ b/tests/site.spec.ts
@@ -72,6 +72,22 @@ test('serves the CV, the thesis and the icons', async ({ request }) => {
   }
 });
 
+test('opens other sites and read-only PDFs in a new tab, and says so', async ({ page }) => {
+  await page.goto('/');
+  const leaving = page.locator('a[href^="http"], a[href$=".pdf"]:not([download])');
+  expect(await leaving.count()).toBeGreaterThan(4);
+  for (const link of await leaving.all()) {
+    const href = await link.getAttribute('href');
+    await expect(link, href!).toHaveAttribute('target', '_blank');
+    await expect(link, href!).toHaveAttribute('rel', /noopener/);
+    await expect(link.locator('.sr-only'), href!).toHaveText('(opens in a new tab)');
+  }
+  // Downloads stay where they are.
+  for (const link of await page.locator('a[download]').all()) {
+    await expect(link).not.toHaveAttribute('target', '_blank');
+  }
+});
+
 test('tells search engines and link previews who the page is about', async ({ page, request }) => {
   await page.goto('/');
   const meta = (selector: string) => page.locator(selector).getAttribute('content');
@@ -261,6 +277,25 @@ test("paints past the page's edges in the theme's colour, then the footer's", as
   await expect(edge).toBeHidden();
 });
 
+test('copies the email address in one click, and says so', async ({ page }) => {
+  // A stand-in clipboard, the same in every browser, that records what it is given.
+  await page.addInitScript(() => {
+    Object.defineProperty(navigator, 'clipboard', {
+      value: { writeText: async (text: string) => ((window as any).copied = text) },
+    });
+  });
+  await page.goto('/');
+
+  const copy = page.getByRole('button', { name: /Copy the email address/ });
+  await copy.click();
+  expect(await page.evaluate(() => (window as any).copied)).toBe('terencio.agozzino@gmail.com');
+  await expect(copy.getByText('Copied')).toBeVisible();
+  await expect(page.locator('.address .status')).toHaveText('Email address copied');
+
+  // Back to the icon after a moment.
+  await expect(copy.getByText('Copied')).toBeHidden({ timeout: 3000 });
+});
+
 test('counts the visit, and the CV, the thesis, an email and a link out', async ({ page }) => {
   // A stand-in for GoatCounter's script, which records what it is given.
   await page.route('https://gc.zgo.at/count.js', (route) =>