Overview of codebook categories
| Codebook categories | Description |
| Website description | Date of access, URL, country specificity, age restrictions |
| Product availability | Types of EC devices and refills sold: open tank devices, cartridge devices, ‘cigalike’ disposable devices, e-liquid bottles and cartridges |
| Marketing claims | (1) Comparisons with tobacco and health-related claims (including smoking cessation claims), (2) claims relating to product characteristics, (3) financial claims, (4) social claims, (5) claims relating to flavour, nicotine and sensory experiences, (6) claims relating to modernity and convenience, and (7) claims relating to collaborations |
| CAP code compliance | Compliance with each of CAP codes 22.2–22.11 |
CAP, Committee of Advertising Practice; EC, electronic cigarette; URL, Uniform Resource Locator.