Reference Tables

Why Text Length Limits Matter for Accessibility and UX

Adhering to recommended text length limits isn’t just about fitting within platform constraints—it directly impacts accessibility and user experience. For example, overly long alt text can overwhelm screen reader users, while excessively short descriptions may omit critical context. Similarly, long form field labels or error messages can increase cognitive load, especially for users with dyslexia or attention deficits. Platforms like Twitter and LinkedIn enforce character limits not only for technical efficiency but also to promote concise, scannable communication. Understanding these constraints helps writers and developers create content that’s both compliant and inclusive. Moreover, many countries now legally require digital content to meet accessibility standards (e.g., WCAG), making thoughtful text length decisions a legal as well as ethical consideration.

Best Practices for Alt Text in Web Accessibility

Alt text (alternative text) serves as a vital bridge for users who cannot see images—whether due to visual impairments, slow connections, or image-loading failures. The key is to describe the function and context of the image, not just its appearance. For decorative images, use empty alt attributes (alt="") to avoid interrupting screen readers. For informative images (e.g., charts, diagrams), aim for 125 characters or fewer, unless more detail is essential; in that case, provide a brief summary in alt text and expand in surrounding content or a longdesc attribute. Social media platforms often truncate or ignore long alt text, so brevity without sacrificing meaning is crucial. Always ask: ‘If I couldn’t show this image, what would a user need to know?’ That answer should guide your alt text.

Password Length vs. Complexity: What Platforms Actually Require

While many users still associate strong passwords with complex combinations of uppercase, numbers, and symbols, modern security guidelines increasingly prioritise length over complexity. For instance, Google and Apple now recommend minimum lengths of 8–12 characters, with longer strings encouraged—up to 64 characters for many services like Microsoft and GitHub. Password managers make long, unique passphrases (e.g., 'correct-horse-battery-staple') both feasible and secure. However, some legacy systems still impose arbitrary limits (e.g., 16 characters) or block special characters, so checking platform-specific requirements is essential. Crucially, rate-limiting login attempts and multi-factor authentication (MFA) offer stronger protection than forced character variety. Always verify current policies, as many platforms have updated their standards since 2020 to align with NIST guidelines.