Groundbreaking Research at the MBL | Marine Biological Laboratory

Careers & Internships | Marine Biological Laboratory

First time visit: View without clicking anything

Educational Opportunities | Marine Biological Laboratory

Marine Biological Laboratory | Biological Discovery in Woods Hole

Access the MBL Toolbox | Marine Biological Laboratory

About the MBL | Marine Biological Laboratory

Visit The MBL | Marine Biological Laboratory

Every page should have a clearly defined heading, known as a "H1" (Heading 1).

A `H1` is the main heading of the page. It helps accessibility by allowing uses to
skip to the main content of the page. It helps all users identify what the page is about. 
It helps SEO by giving special emphasis to the topic of the page.

It is not enough to simply include large text. Headings must be coded 
[semantically](https://html.com/semantic-markup/) as `<h1>` tags, like so:

```html
<h1>This is a heading</h1>
```

Note that headings must contain some machine readable text to be considered valid. 
For example, this heading is not valid:

```html
<h1>
    <img src="company-logo.png">
</h1>
``` 

But with the addition of `alt` text, this heading is valid:

```html
<h1>
    <img src="company-logo.png" alt="About Company Inc.">
</h1>
``` 

Generally we recommend you just use plain text for your headings.
See [Technique H42](https://www.w3.org/TR/WCAG20-TECHS/H42) for more details.

missing-h1

January 2025

December 2024

Marine Biological Laboratory

Title / URL	Issues
Groundbreaking Research at the MBL \| Marine Biological Laboratorywww.mbl.edu/research	1
Careers & Internships \| Marine Biological Laboratorywww.mbl.edu/about/careers-internships	1
First time visit: View without clicking anythingwww.mbl.edu/	1
Educational Opportunities \| Marine Biological Laboratorywww.mbl.edu/education	1
Marine Biological Laboratory \| Biological Discovery in Woods Holewww.mbl.edu/	1
Access the MBL Toolbox \| Marine Biological Laboratorywww.mbl.edu/toolbox	1
About the MBL \| Marine Biological Laboratorywww.mbl.edu/about	1
Visit The MBL \| Marine Biological Laboratorywww.mbl.edu/visit	1

Ensure every page contains a top-level heading

Marine Biological Laboratory

Where this issue has occurred