Start with the publishing system you already have
Before writing XML, check whether your content-management system, static-site generator, newsletter platform, or podcast host already produces a feed. Many systems expose it at a conventional path and update it automatically. Using the native generator is often safer than maintaining a second pipeline, provided you can confirm the feed contains the right URLs, dates, summaries, and identifiers. The task is not merely to create a file once; it is to keep the file correct every time content changes.
If the system does not provide a feed, build one from the same data that renders your article pages. A static site might store posts as Markdown with front matter. A custom application might read records from a database. A hand-authored site can maintain a small structured data file. The crucial principle is one source of truth. Do not copy titles and URLs into a separate feed by hand if an automated build can derive them.
Define the canonical fields
Create a content model before choosing a template. Each entry should have a stable internal identifier, canonical URL, title, short description, publication date, optional modification date, author or publication name, categories, and either full HTML content or a summary. Media entries may need an enclosure URL, MIME type, and file size. The feed itself needs a title, homepage URL, description, language, and its own public URL.
Treat canonical URLs as permanent. If an article is available at /guides/rss-basics/, use that exact URL in the feed and on the page. Avoid tracking parameters or session values. For identifiers, a canonical URL is often adequate when it will never be reused, but a separate stable ID can survive a URL migration. Decide once and document the rule so a future redesign does not make old articles appear new.
Generate the channel and items
An RSS 2.0 document begins with an rss element and a channel. Add the publication title, homepage link, description, language, and feed self reference. Then emit an item for each recent article. Most public feeds include a limited window rather than an entire archive. Twenty to fifty entries is common operationally, but the right number depends on publishing frequency, item size, and reader needs. Preserve older articles on the website even when they rotate out of the feed.
For each item, include a readable title, canonical link, description or content, publication date, and stable GUID. Serialize dates in the format expected by RSS and include a timezone. Escape XML special characters in text values. If you include HTML, serialize it safely so tags do not break the surrounding XML. Automated libraries can handle escaping, but you still need tests using ampersands, quotation marks, emoji, code blocks, and embedded images.
Choose full content or excerpts
A full-content feed lets subscribers read without leaving their reader. It is generous, accessible for offline use, and often appreciated by loyal audiences. An excerpt feed keeps the XML smaller and leads readers to the designed article page. Neither approach is universally correct. Consider licensing, advertising, analytics, layout-dependent content, and whether important interactive elements can work outside the site.
Whichever model you choose, make it consistent. A vague one-sentence teaser creates a poor subscription experience, while unprocessed full HTML may bring navigation, scripts, or unrelated page furniture into the reader. Generate feed content from the article body, not the entire rendered page. Convert relative image and link URLs to absolute URLs because the content will be displayed on another origin.
Add feed discovery to the website
A technically valid feed is difficult to use if nobody can find it. Add a visible RSS or Feed link in the header, footer, or subscription area. In the HTML head, add a link element with rel set to alternate, the appropriate feed media type, a descriptive title, and the absolute feed URL. Many readers and browser extensions inspect that element when a user enters the homepage address.
Use clear language for nontechnical visitors. “Follow via RSS” or “Open the RSS feed” explains the destination better than a tiny icon alone. Link directly to the XML; modern browsers may display raw markup, but feed readers can accept the URL. A short RSS guide page can explain how to copy the link into a reader and answer common questions.
Validate structure and test behavior
Run the generated feed through a feed validator after the first build and whenever the template changes. Fix errors first, then review warnings in context. Validation catches many structural problems, but it cannot verify editorial quality. Add the feed to at least two readers, publish a new item, update its title, and confirm it remains one item. Test an article with a long title, a missing optional image, a non-ASCII author name, and embedded code.
Also test HTTP behavior. The feed URL should return a successful status, a suitable content type, and no authentication challenge. Redirects should be intentional and permanent when a location changes. Compression reduces transfer size. Conditional requests using ETag or Last-Modified can reduce unnecessary downloads, particularly for frequently polled feeds. Your hosting platform may provide these automatically for static files.
Keep dates and identifiers stable
Feed problems often appear after a rebuild rather than at launch. If every item receives the build date as its publication date, old articles jump to the top. If GUIDs are generated randomly, readers see duplicates. If modification dates are omitted, meaningful updates may not be visible in formats that support them. Preserve publication metadata in the content source and make the build deterministic.
When correcting a typo, do not change the identifier. When moving an article, redirect the old URL and decide whether the feed link should change; if it does, keep the GUID stable. When importing an archive, use original publication dates rather than the migration date. These rules protect subscribers from an accidental flood of “new” historical entries.
Plan for images, audio, and rich content
Images referenced inside entry HTML should use absolute HTTPS URLs, useful alt text, and reasonable dimensions. A reader may download them on a mobile connection, so avoid sending enormous originals. Podcast and media feeds use enclosure elements that point to files and describe the MIME type and byte length. The item page can include a player, but the enclosure is what many clients use for delivery.
Avoid scripts, forms, and layout-dependent widgets in feed content. Readers sanitize HTML for security and may strip styles. Write entries that remain understandable as a clean document: headings, paragraphs, lists, images, quotations, and links. If an article depends on an interactive chart, include a text summary and a link to the full page.
Automate the maintenance checks
Add feed generation to the normal production build so it cannot be forgotten. A useful test suite verifies that the XML parses, every item has an allowed URL, dates are valid, identifiers are unique, no item points to a draft, and the newest expected article is present. Check that the feed URL appears in the HTML head and that every item URL exists in the generated site.
Monitor the public feed after deployment. A simple uptime check can confirm the URL returns successfully, while a scheduled parser can detect malformed output. Keep the feed size within a reasonable range and remove accidental binary data or page chrome. Our RSS tools checklist groups the validations into a repeatable release routine.
Conclusion
Creating an RSS feed is less about hand-coding XML than about designing a stable publishing contract. Generate it from canonical content, preserve dates and IDs, expose a permanent URL, advertise it, validate it, and test real reader behavior. Once those pieces are in place, the feed can serve many applications without custom integration work.
Start with one format and make it excellent. You can add Atom or JSON Feed later from the same content model. Reliability earns subscribers slowly, and a feed that survives redesigns becomes part of the publication’s identity.