Kilotest: Diagnoses of DOCTYPE invalid
violation by HTML element 0 on Oregon Museum of Science and Industry page
Basics
About the Oregon Museum of Science and Industry page
- URL: https://omsi.edu/
- Tested 20 days ago by job
42won 2026-05-12 at 23:14
About HTML element 0
- Tag name:
HTML - Text: [not applicable]
- Start tag:
<html lang="en" class="no-js js"> - XPath:
/html - Bounding box: x = 0, y = 0, width = 1920, height = 7408
About the DOCTYPE invalid
issue
- Why it matters: Browser processes the document improperly
- Priority: high
- Related WCAG standard: 1.3.1
Diagnoses
Here is how tools diagnose the DOCTYPE invalid
issue for HTML element 0 of the Oregon Museum of Science and Industry page.
- Almost standards mode doctype. Expected <!DOCTYPE html>.
Tool: Html Checker API (World Wide Web Consortium)