lets you share a URL with #product-123. This is stable and accessible. 2. Use structured markup and data attributes If the collection is generated dynamically, include data attributes like data-index or data-id so scripts and analytics can reliably locate the desired item regardless of markup changes. 3. Select by index with JavaScript When no IDs exist, a client-side script can locate the nth link: const links = document.querySelectorAll('.results a'); const nth = links[4]; // fifth link But be careful: DOM order can change with responsive layouts or lazy loading, so index-based selection is fragile. 4. Create canonical nthlink URLs To make an index-based deep link, combine a fragment and a stable container: /search?q=term#result-5. Your script can interpret the fragment and focus or highlight the corresponding item on load. Best practices and pitfalls - Prefer semantic IDs or unique data attributes over numeric indices. - Avoid relying on nth selection for critical navigation unless you control rendering order. - Ensure keyboard and screen reader users can access nth targets—use tabindex, aria-describedby, and visible focus style when focusing elements programmatically. - Handle dynamic loading: if items load asynchronously, wait for content before resolving an nthlink. - Use analytics events to track position-based interactions but be aware of sampling biases. Conclusion “nthlink” is a useful pattern for developers and product teams when they need to address a particular item in a sequence. The simplest, most maintainable approach is to provide stable identifiers; when that’s not possible, carefully implemented index-based selection can work, provided you guard against dynamic content and accessibility concerns.