Kilotest: Violations of attribute invalid issue for Taproot Foundation page

Basics

About the page

• URL: https://taprootfoundation.org/
• Tested 2 days ago on 2026-10-07 at 23:08 by job 261007T2305-4se
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 11
  • Violations: 508
  • Violators: 244
  • Issues: 35
• Download the full technical report (JSON)

About the issue

• Why it matters: Item behaves improperly
• Priority: highest
• Related WCAG standard: 1.3.1
• Reported by 1 rule engine (Html Checker)
• Violations: 66
• Violators: 33

Violators

Here are the HTML elements reported to violate rules belonging to the attribute invalid issue.

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• Element 333

  • Tag name: SECTION
  • Text: Trusted by 35,000+ nonprofits and 150,000+ skilled volunteers
  • Start tag: <section class="section--brand-carousel" data-section-theme="light" x-data="{ page: 0 }">
  • XPath: /html/body/div[2]/section[5]
  • Bounding box: x = 276, y = 2494, width = 1368, height = 316
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 339

  • Tag name: DIV
  • Text: [not applicable]
  • Start tag: <div class="section--brand-carousel__page" x-show="page === 0">
  • XPath: /html/body/div[2]/section[5]/div[2]/div[1]/div[1]
  • Bounding box: x = 308, y = 2596, width = 1304, height = 166
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 358

  • Tag name: DIV
  • Text: Nonprofits … Get Started
  • Start tag: <div class="section--tab__tabs" x-data="{ active: 0 }">
  • XPath: /html/body/div[2]/section[6]/div[2]
  • Bounding box: x = 276, y = 2912, width = 1368, height = 521
  • Reported by Html Checker
  • Take me there
  • What diagnoses were reported?

• Element 360

  • Tag name: BUTTON
  • Text: Nonprofits
  • Start tag: <button type="button" role="tab" class="section--tab__nav-item is-active" :class="{ 'is-active': active === 0 }" :aria-selected="(active === 0).toString()" @click="active = 0" id="tabs-tab-0" aria-controls="tabs-panel-0" aria-selected="true">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[1]/button[1]
  • Bounding box: x = 308, y = 2912, width = 113, height = 51
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 361

  • Tag name: BUTTON
  • Text: Skilled Volunteers
  • Start tag: <button type="button" role="tab" class="section--tab__nav-item" :class="{ 'is-active': active === 1 }" :aria-selected="(active === 1).toString()" @click="active = 1" id="tabs-tab-1" aria-controls="tabs-panel-1" aria-selected="false">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[1]/button[2]
  • Bounding box: x = 437, y = 2912, width = 167, height = 51
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 362

  • Tag name: BUTTON
  • Text: Companies
  • Start tag: <button type="button" role="tab" class="section--tab__nav-item" :class="{ 'is-active': active === 2 }" :aria-selected="(active === 2).toString()" @click="active = 2" id="tabs-tab-2" aria-controls="tabs-panel-2" aria-selected="false">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[1]/button[3]
  • Bounding box: x = 620, y = 2912, width = 118, height = 51
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 363

  • Tag name: BUTTON
  • Text: Grantmakers
  • Start tag: <button type="button" role="tab" class="section--tab__nav-item" :class="{ 'is-active': active === 3 }" :aria-selected="(active === 3).toString()" @click="active = 3" id="tabs-tab-3" aria-controls="tabs-panel-3" aria-selected="false">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[1]/button[4]
  • Bounding box: x = 754, y = 2912, width = 133, height = 51
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 364

  • Tag name: DIV
  • Text: For Nonprofits … Get Started
  • Start tag: <div class="section--tab__panel" role="tabpanel" id="tabs-panel-0" aria-labelledby="tabs-tab-0" x-show="active === 0">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[2]
  • Bounding box: x = 276, y = 2963, width = 1368, height = 470
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 376

  • Tag name: DIV
  • Text: For Skilled Volunteers … Get Started
  • Start tag: <div class="section--tab__panel" role="tabpanel" id="tabs-panel-1" aria-labelledby="tabs-tab-1" x-show="active === 1" style="display: none;">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[3]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 388

  • Tag name: DIV
  • Text: For Companies … Partner With Us
  • Start tag: <div class="section--tab__panel" role="tabpanel" id="tabs-panel-2" aria-labelledby="tabs-tab-2" x-show="active === 2" style="display: none;">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[4]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 400

  • Tag name: DIV
  • Text: For Grantmakers … Partner With Us
  • Start tag: <div class="section--tab__panel" role="tabpanel" id="tabs-panel-3" aria-labelledby="tabs-tab-3" x-show="active === 3" style="display: none;">
  • XPath: /html/body/div[2]/section[6]/div[2]/div[5]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 103

  • Tag name: HEADER
  • Text: Work With Us … Find Pro Bono Opportunities
  • Start tag: <header class="site-header" data-section-theme="inverse" x-data="{ open: null, mobileOpen: false, section: null }" x-effect="document.body.style.overflow = mobileOpen ? 'hidden' : ''" @keydown.escape.window="open = null; mobileOpen = false" @click.outside="open = null">
  • XPath: /html/body/header[1]
  • Bounding box: x = 0, y = 0, width = 1920, height = 105
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 123

  • Tag name: BUTTON
  • Text: Work With Us … Find Pro Bono Opportunities
  • Start tag: <button type="button" class="site-header__menu-toggle" aria-controls="site-header-mobile" :aria-expanded="mobileOpen" aria-label="Open menu" @click="mobileOpen = true" aria-expanded="false">
  • XPath: /html/body/header[1]/div[2]/button[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 127

  • Tag name: LI
  • Text: Work With Us
  • Start tag: <li class="site-header__item" @mouseenter="open = 'work-with-us'" @mouseleave="open = null">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[1]
  • Bounding box: x = 881, y = 32, width = 95, height = 72
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 128

  • Tag name: BUTTON
  • Text: Work With Us
  • Start tag: <button type="button" class="site-header__trigger" :class="{ 'is-open': open === 'work-with-us' }" aria-controls="site-header-panel-work-with-us" :aria-expanded="open === 'work-with-us'" @click="open = open === 'work-with-us' ? null : 'work-with-us'" aria-expanded="false">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[1]/button[1]
  • Bounding box: x = 881, y = 58, width = 95, height = 20
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 129

  • Tag name: DIV
  • Text: Taproot Plus … Explore
  • Start tag: <div id="site-header-panel-work-with-us" class="site-header__panel site-header__panel--cards" x-show="open === 'work-with-us'" x-transition.opacity="" style="display: none;">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[1]/div[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • Take me there
  • What diagnoses were reported?

• Element 152

  • Tag name: LI
  • Text: Advance Pro Bono
  • Start tag: <li class="site-header__item" @mouseenter="open = 'advance-pro-bono'" @mouseleave="open = null">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[2]
  • Bounding box: x = 1016, y = 32, width = 127, height = 72
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 153

  • Tag name: A
  • Text: Advance Pro Bono
  • Start tag: <a href="/advance-pro-bono" class="site-header__trigger" :class="{ 'is-open': open === 'advance-pro-bono' }" aria-controls="site-header-panel-advance-pro-bono" :aria-expanded="open === 'advance-pro-bono'" @click="if (open !== 'advance-pro-bono') { $event.preventDefault(); open = 'advance-pro-bono' }" aria-expanded="false">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[2]/a[1]
  • Bounding box: x = 1016, y = 58, width = 127, height = 20
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 154

  • Tag name: DIV
  • Text: Ignite Summit … Innovate With Us
  • Start tag: <div id="site-header-panel-advance-pro-bono" class="site-header__panel site-header__panel--cards" x-show="open === 'advance-pro-bono'" x-transition.opacity="" style="display: none;">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[2]/div[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 170

  • Tag name: LI
  • Text: Tools
  • Start tag: <li class="site-header__item" @mouseenter="open = 'tools'" @mouseleave="open = null">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[3]
  • Bounding box: x = 1183, y = 32, width = 35, height = 72
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 171

  • Tag name: A
  • Text: Tools
  • Start tag: <a href="/resources" class="site-header__trigger" :class="{ 'is-open': open === 'tools' }" aria-controls="site-header-panel-tools" :aria-expanded="open === 'tools'" @click="if (open !== 'tools') { $event.preventDefault(); open = 'tools' }" aria-expanded="false">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[3]/a[1]
  • Bounding box: x = 1183, y = 58, width = 35, height = 20
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 172

  • Tag name: DIV
  • Text: Helping you do pro bono right … Success Stories
  • Start tag: <div id="site-header-panel-tools" class="site-header__panel site-header__panel--links" x-show="open === 'tools'" x-transition.opacity="" style="display: none;">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[3]/div[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • Take me there
  • What diagnoses were reported?

• Element 189

  • Tag name: LI
  • Text: Mission
  • Start tag: <li class="site-header__item" @mouseenter="open = 'mission'" @mouseleave="open = null">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[4]
  • Bounding box: x = 1258, y = 32, width = 52, height = 72
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 190

  • Tag name: A
  • Text: Mission
  • Start tag: <a href="/about" class="site-header__trigger" :class="{ 'is-open': open === 'mission' }" aria-controls="site-header-panel-mission" :aria-expanded="open === 'mission'" @click="if (open !== 'mission') { $event.preventDefault(); open = 'mission' }" aria-expanded="false">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[4]/a[1]
  • Bounding box: x = 1258, y = 58, width = 52, height = 20
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 191

  • Tag name: DIV
  • Text: Powering what's possible … Careers
  • Start tag: <div id="site-header-panel-mission" class="site-header__panel site-header__panel--links" x-show="open === 'mission'" x-transition.opacity="" style="display: none;">
  • XPath: /html/body/header[1]/div[2]/nav[1]/ul[1]/li[4]/div[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • Take me there
  • What diagnoses were reported?

• Element 213

  • Tag name: NAV
  • Text: Search … Find Pro Bono Opportunities
  • Start tag: <nav id="site-header-mobile" class="site-header__mobile" aria-label="Main" x-show="mobileOpen" x-transition.opacity="" style="display: none;">
  • XPath: /html/body/header[1]/nav[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • Take me there
  • What diagnoses were reported?

• Element 226

  • Tag name: BUTTON
  • Text: [not applicable]
  • Start tag: <button type="button" class="site-header__menu-toggle" aria-label="Close menu" @click="mobileOpen = false">
  • XPath: /html/body/header[1]/nav[1]/div[1]/button[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 235

  • Tag name: BUTTON
  • Text: Mission
  • Start tag: <button type="button" class="site-header__mobile-row" :class="{ 'is-open': section === 'mission' }" aria-controls="site-header-mobile-mission" :aria-expanded="section === 'mission'" @click="section = section === 'mission' ? null : 'mission'" aria-expanded="false">
  • XPath: /html/body/header[1]/nav[1]/ul[1]/li[1]/button[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 237

  • Tag name: UL
  • Text: About & Impact … Careers
  • Start tag: <ul id="site-header-mobile-mission" class="site-header__mobile-sublist" x-show="section === 'mission'" style="display: none;">
  • XPath: /html/body/header[1]/nav[1]/ul[1]/li[1]/ul[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 251

  • Tag name: BUTTON
  • Text: Work With Us
  • Start tag: <button type="button" class="site-header__mobile-row" :class="{ 'is-open': section === 'work-with-us' }" aria-controls="site-header-mobile-work-with-us" :aria-expanded="section === 'work-with-us'" @click="section = section === 'work-with-us' ? null : 'work-with-us'" aria-expanded="false">
  • XPath: /html/body/header[1]/nav[1]/ul[1]/li[2]/button[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 253

  • Tag name: UL
  • Text: Taproot Plus … Grantmakers
  • Start tag: <ul id="site-header-mobile-work-with-us" class="site-header__mobile-sublist" x-show="section === 'work-with-us'" style="display: none;">
  • XPath: /html/body/header[1]/nav[1]/ul[1]/li[2]/ul[1]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • Take me there
  • What diagnoses were reported?

• Element 586

  • Tag name: SCRIPT
  • Text: [not applicable]
  • Start tag: <script id="" text="" charset="utf-8" type="text/javascript" src="https://my.hellobar.com/916e36101e75509b81b0782c35842b0320b39cab.js">
  • XPath: /html/body/script[3]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?

• Element 587

  • Tag name: SCRIPT
  • Text: [not applicable]
  • Start tag: <script id="" text="" charset="" type="text/javascript" src="https://static.klaviyo.com/onsite/js/klaviyo.js?company_id=YfKTRB">
  • XPath: /html/body/script[4]
  • Bounding box: [not obtained]
  • Reported by Html Checker
  • What diagnoses were reported?