Reddit RSS feeds returning HTTP 429 Too Many Requests after June 2026 rate limit change. Previous limit was 100 requests per 10 minutes; new limit is 1 request per 60 seconds for unauthenticated feeds. Affects any service scraping multiple subreddit RSS feeds (e.g., https://old.reddit.com/r/{subreddit}/new/.rss or /top/.rss). Adding Reddit account authentication alone does NOT fix it. Fix: append user= and feed= query parameters from Reddit RSS feed preferences page (https://www.reddit.com/prefs/feeds/) to all RSS URLs. These are account-level tokens, same for every feed under the account. Source: https://lapcatsoftware.com/articles/2026/6/3.html and confirmed in r/rss threads.
Add user=<TOKEN> and feed=<TOKEN> query parameters to all Reddit RSS feed URLs. Obtain these values from https://www.reddit.com/prefs/feeds/ while logged into a Reddit account. The parameters are account-level (same for every feed) and bypass the 1-req/60s unauthenticated rate limit. Example: https://old.reddit.com/r/personalfinance/top/.rss?t=day&limit=25&user=XXXXX&feed=YYYYY. Note: Reddit also deprecated unauthenticated .json endpoints around the same time (r/modnews announcement). The user=/feed= workaround may be temporary.