Kilotest: Diagnoses of ID not unique violation by HTML element 901 on WePlanet page

Basics

About the page

• URL: https://weplanet.org/
• Tested 3 days ago on 2026-10-07 at 22:08 by job 261007T2139-qob
• Summary of results:
  • Rule engines:
    • Called: 12
    • Were able to test: 12
    • Reported any rule violations: 12
  • Violations: 1361
  • Violators: 395
  • Issues: 50
• Download the full technical report (JSON)

About the issue

• Why it matters: User may be pointed to the wrong item
• Priority: highest
• Related WCAG standard: 4.1
• Reported by 4 rule engines (ASLint + Html Checker + HTML CodeSniffer + QualWeb)
• Violations: 78
• Violators: 40

About the violator

• Tag name: WOW-IMAGE
• Text: [not applicable]
• Start tag: <wow-image id="img_undefined" class="Qh0lWW _FUM6P" data-image-info="{&quot;displayMode&quot;:&quot;fill&quot;,&quot;isLQIP&quot;:true,&quot;encoding&quot;:&quot;AVIF&quot;,&quot;imageData&quot;:{&quot;width&quot;:397,&quot;height&quot;:400,&quot;uri&quot;:&quot;dccfdc_21aad5f42e134926aa57465e134d1c53~mv2.png&quot;,&quot;name&quot;:&quot;&quot;,&quot;displayMode&quot;:&quot;fill&quot;}}" data-motion-part="BG_IMG undefined" data-bg-effect-name="" data-has-ssr-src="true">
• XPath: [not obtained]
• Bounding box: x = 1838, y = 3751, width = 208, height = 156
• Reported by Html Checker + HTML CodeSniffer + QualWeb

Diagnoses

Here is how rule engines diagnose the ID not unique issue for HTML element 901 of the WePlanet page.

1. Duplicate id attribute value "img_undefined" found on the web page.

   Rule engine: HTML CodeSniffer (Squiz Labs)

   Rule: E-WCAG2AAA.Principle4.Guideline4_1.4_1_1.F77

2. Duplicate ID img_undefined.

   Rule engine: Html Checker (World Wide Web Consortium)

3. [failed]

   Rule engine: QualWeb (University of Lisbon)

   Rule: QW-BP30