# How to Monitor Reddit and Get Alerts for New Posts Source: PageCrawl.io Blog URL: https://pagecrawl.io/blog/monitoring-reddit-alerts-for-new-posts --- Someone posts a job opening in your niche subreddit. Within an hour, the thread has 40 comments and the poster has stopped reading new replies. The people who responded in the first 15 minutes got interviews. Everyone else wrote into the void. Reddit moves fast. New posts in active subreddits get buried within hours. Deals posted to r/buildapcsales sell out before most subscribers see them. Security advisories in r/netsec need immediate attention. Customer complaints mentioning your brand in r/sysadmin can spiral into a reputation problem if nobody from your team notices for two days. Manually refreshing subreddits is not a strategy. This guide covers how to set up automated Reddit monitoring that sends you alerts the moment new posts appear, with optional keyword filtering so you only hear about what matters. ### Why Reddit Is Easy to Monitor Reddit publishes native RSS feeds for almost everything on the platform. Unlike most modern websites that require a browser to render JavaScript, Reddit's RSS feeds are plain XML that any feed reader or monitoring tool can parse directly. This makes Reddit monitoring fast, lightweight, and reliable. Every subreddit, search result page, user profile, and multi-reddit combination has a corresponding RSS feed URL. You just need to know the pattern. ### Every Reddit Feed URL You Can Monitor Reddit exposes RSS feeds by appending `.rss` to most URLs on the site. Here is the complete reference: #### Subreddit feeds | What you want | URL pattern | Example | |---------------|-------------|---------| | All posts in a subreddit | `/r/{subreddit}/.rss` | `reddit.com/r/webdev/.rss` | | New posts (chronological) | `/r/{subreddit}/new/.rss` | `reddit.com/r/webdev/new/.rss` | | Hot posts | `/r/{subreddit}/hot/.rss` | `reddit.com/r/webdev/hot/.rss` | | Top posts (today) | `/r/{subreddit}/top/.rss?t=day` | `reddit.com/r/webdev/top/.rss?t=day` | | Top posts (week/month/year) | `/r/{subreddit}/top/.rss?t=week` | `reddit.com/r/deals/top/.rss?t=week` | | Rising posts | `/r/{subreddit}/rising/.rss` | `reddit.com/r/technology/rising/.rss` | For most monitoring use cases, the default feed (`/r/{subreddit}/.rss`) or the new feed (`/r/{subreddit}/new/.rss`) are the best choices. The default feed returns Reddit's Hot ranking, while `/new/.rss` gives you strict chronological (newest-first) order. For time-sensitive monitoring, use the `/new/.rss` variant. Note: These feeds return roughly the 25 most recent items per check. On very busy subreddits, use the `/new/.rss` variant with a shorter check interval so that a burst of more than 25 posts between checks is not pushed out of the feed before it is recorded. #### Search feeds | What you want | URL pattern | Example | |---------------|-------------|---------| | Search within a subreddit | `/r/{sub}/search.rss?q={query}&restrict_sr=on&sort=new` | `reddit.com/r/sysadmin/search.rss?q=outage&restrict_sr=on&sort=new` | | Search all of Reddit | `/search.rss?q={query}&sort=new` | `reddit.com/search.rss?q=pagecrawl&sort=new` | | Search with multiple terms | Use `+` for spaces in query | `reddit.com/search.rss?q=price+drop&sort=new` | | Exact phrase search | Wrap in encoded quotes `%22` | `reddit.com/search.rss?q=%22breaking+change%22&sort=new` | | Exclude terms | Use `-` before a word | `reddit.com/search.rss?q=hiring+-unpaid&sort=new` | | Filter by flair | Add `flair:{name}` to query | `reddit.com/r/webdev/search.rss?q=flair:Showoff&restrict_sr=on&sort=new` | | Self-posts only | Add `self:yes` to query | `reddit.com/r/cscareerquestions/search.rss?q=self:yes+salary&restrict_sr=on&sort=new` | | Links only (no self-posts) | Add `self:no` to query | `reddit.com/r/technology/search.rss?q=self:no+AI&restrict_sr=on&sort=new` | | NSFW filter | Add `nsfw:no` to query | `reddit.com/search.rss?q=remote+jobs+nsfw:no&sort=new` | Search feeds are powerful for brand monitoring, keyword tracking, and competitive intelligence. Add `&sort=new` to get the most recent results first rather than Reddit's relevance ranking. Reddit's search syntax supports boolean operators, exact phrases, flair filtering, and self-post filtering, all of which carry over to the RSS feed. #### Comment search feeds Subreddit and search RSS feeds cover posts only, not the comments inside a thread. There is one exception: a specific user's comments do have a feed (`reddit.com/user/{username}/comments/.rss`), covered in the user feeds section below. To search comments across a subreddit or all of Reddit, use the standard Reddit search URL with `type=comment`. PageCrawl monitors these with its browser engine and automatically detects the repeating comment structure. | What you want | URL pattern | Example | |---------------|-------------|---------| | Search comments across Reddit | `/search/?q={query}&type=comment&sort=new` | `reddit.com/search/?q=pagecrawl&type=comment&sort=new` | | Search comments in a subreddit | `/r/{sub}/search/?q={query}&type=comment&restrict_sr=on&sort=new` | `reddit.com/r/webdev/search/?q=react+hooks&type=comment&restrict_sr=on&sort=new` | Comment search is especially useful for brand monitoring. Post search only catches threads about your brand, while comment search catches every time someone mentions your brand in a reply, even in unrelated threads. Note that comment search uses the browser engine instead of the fast RSS engine, so checks take slightly longer. #### User and comment feeds | What you want | URL pattern | Example | |---------------|-------------|---------| | User's posts | `/user/{username}/.rss` | `reddit.com/user/spez/.rss` | | User's comments | `/user/{username}/comments/.rss` | `reddit.com/user/spez/comments/.rss` | | User's submitted links | `/user/{username}/submitted/.rss` | `reddit.com/user/spez/submitted/.rss` | | Comments on a specific post | Append `.rss` to any post URL | `reddit.com/r/webdev/comments/abc123/post_title/.rss` | User feeds are useful for monitoring specific accounts, whether that is a competitor's social team, [a high-profile public figure](/blog/monitor-trump-truth-social), or your own brand account. The post comment feed is useful for tracking discussions on high-value threads, such as an AMA, a product launch announcement, or an incident report. #### Multi-subreddit, domain, and front page feeds | What you want | URL pattern | Example | |---------------|-------------|---------| | Multiple subreddits combined | `/r/{sub1}+{sub2}+{sub3}/.rss` | `reddit.com/r/webdev+javascript+react/.rss` | | Reddit front page | `/.rss` | `reddit.com/.rss` | | Domain-specific posts | `/domain/{domain}/.rss` | `reddit.com/domain/github.com/.rss` | | Competitor domain mentions | `/domain/{competitor.com}/.rss` | `reddit.com/domain/competitor.com/.rss` | | Wiki/documentation changes | `/r/{sub}/wiki/revisions/.rss` | `reddit.com/r/minecraft/wiki/revisions/.rss` | The multi-subreddit syntax (`sub1+sub2+sub3`) is especially useful when you want a single monitor covering related communities without burning multiple monitor slots. The domain feed shows Reddit posts linking to a specific domain, which is useful for tracking mentions of your website, a competitor's product pages, or news coverage from a specific publication. Note: The domain feed (`/domain/{domain}/.rss`) and the wiki revisions feed (`/r/{sub}/wiki/revisions/.rss`) are best-effort and may return empty for some inputs. Treat an empty result as "nothing new" rather than a guaranteed, always-populated feed. #### Advanced combinations These examples combine multiple Reddit search features into a single feed URL: - **Track job posts mentioning your tech stack across multiple subreddits:** `reddit.com/r/forhire+remotejs+PHPjobs/search.rss?q=hiring+react&restrict_sr=on&sort=new` - **Monitor all Reddit posts linking to your competitor's blog:** `reddit.com/domain/blog.competitor.com/.rss` - **Track a product launch across all of Reddit with exact phrase matching:** `reddit.com/search.rss?q=%22Product+Name%22+OR+%22product+name%22&sort=new` - **Watch for security disclosures mentioning specific software:** `reddit.com/r/netsec+cybersecurity+sysadmin/search.rss?q=CVE+OR+vulnerability+OR+zero-day&restrict_sr=on&sort=new` - **Monitor a subreddit for link-only posts about a specific topic (filter out discussion threads):** `reddit.com/r/machinelearning/search.rss?q=self:no+transformer&restrict_sr=on&sort=new` ### Setting Up Reddit Monitoring with PageCrawl You can use the tool at the top of this page to build your feed URL automatically, or follow these steps in PageCrawl directly. #### 1. Choose your feed type Use the feed type selector in the tool above to pick what you want to monitor: subreddit posts, a search query, a user's activity, a domain, or multiple subreddits combined. Fill in the relevant fields (subreddit name, search query, username, etc.) and the tool builds the RSS URL for you. You can see the generated URL in the preview box. If you prefer to construct the URL manually, refer to the feed reference tables above and append `.rss` to any Reddit page URL. #### 2. Create the monitor in PageCrawl Click "Start Monitoring Reddit" in the tool, or sign up at [PageCrawl.io](https://pagecrawl.io) and paste the RSS URL into the new monitor form. PageCrawl detects the RSS feed automatically, parses the items, and shows you a preview of the current posts. No browser session is needed for RSS feeds, so the setup is instant. #### 3. Add keywords (optional) If you only care about posts mentioning specific topics, enter keywords in the Keywords field. For example, entering "hiring, remote, python" means you will only get notified when a new post contains at least one of those words in its title or description. Leave it blank to get notified about every new post. Keywords work alongside the feed's own filtering. For example, you might monitor `r/sysadmin/new` (all new posts) but set keywords to "outage, incident, down" so you only hear about service disruptions. Or monitor a broad search feed and let keywords narrow it further. #### 4. Pick your check frequency and save Choose how often PageCrawl should check the feed. Hourly is available on the free plan. Paid plans support checks as frequently as every 2 minutes. Click save and PageCrawl runs the first check immediately. From now on, each check compares the current feed items against the previous check and notifies you about the exact posts that were added or removed. ### Use Cases #### Brand monitoring Monitor mentions of your company, product, or personal name across Reddit. A single negative post in a popular subreddit can reach tens of thousands of views before your team even notices. Set up these feeds: - **Exact brand name search:** `reddit.com/search.rss?q=%22Your+Brand+Name%22&sort=new` - catches any post mentioning your brand by name across all subreddits - **Broader mention search:** `reddit.com/search.rss?q=yourbrand+OR+your+brand&sort=new` - catches variations and misspellings - **Domain mentions:** `reddit.com/domain/yourdomain.com/.rss` - every Reddit post that links to your website - **Industry subreddit search:** `reddit.com/r/SaaS+startups+software/search.rss?q=%22your+product%22&restrict_sr=on&sort=new` - mentions in communities where your target customers hang out Combine these with [Slack](/blog/discord-website-change-alerts) or [Discord](/blog/discord-website-change-alerts) notifications so your team sees Reddit mentions in real time. For a broader brand protection strategy, see our [online reputation monitoring guide](/blog/online-reputation-monitoring). #### Deal and restock alerts Subreddits like r/buildapcsales, r/deals, r/frugalmalefashion, and r/hardwareswap are where deals surface first, often hours before they hit mainstream deal aggregators. Monitor these feeds with keyword filters for the products you want: - **GPU deals across deal subreddits:** `reddit.com/r/buildapcsales+hardwareswap/.rss` with keywords "4090, 4080, 7900 XTX" - **Apple deals:** `reddit.com/r/deals+appledeals/.rss` with keywords "AirPods, iPad, MacBook" - **Fashion deals by brand:** `reddit.com/r/frugalmalefashion/search.rss?q=Nike+OR+Adidas+OR+New+Balance&restrict_sr=on&sort=new` - **Free stuff and giveaways:** `reddit.com/r/freebies+efreebies/new/.rss` You will be notified only when a new post mentions one of your target products. For price tracking on specific product pages, see our [cross-retailer price comparison guide](/blog/cross-retailer-price-comparison-product-monitoring). #### Job monitoring Many companies and teams post job openings in industry subreddits before listing them on job boards. Early responders get interviews while late responders get ignored. - **Freelance work across boards:** `reddit.com/r/forhire+slavelabour+freelance/search.rss?q=hiring+OR+%5Bhiring%5D&restrict_sr=on&sort=new` - **Remote dev jobs:** `reddit.com/r/remotejs+reactjs+django/search.rss?q=hiring+OR+job+OR+looking+for&restrict_sr=on&sort=new` - **Specific tech stack:** `reddit.com/search.rss?q=hiring+%22senior+react%22+remote&sort=new` - **Career discussion threads:** `reddit.com/r/cscareerquestions/search.rss?q=flair:Megathread&restrict_sr=on&sort=new` For more on job board monitoring, see our [freelance job board monitoring guide](/blog/freelance-job-board-monitoring-upwork-toptal-alerts). #### Competitive intelligence Track what people are saying about your competitors, their products, or their industry. Reddit discussions are often more candid than review sites. - **Competitor mentions across Reddit:** `reddit.com/search.rss?q=%22Competitor+Name%22&sort=new` - **Competitor in your industry sub:** `reddit.com/r/SaaS/search.rss?q=%22competitor%22+OR+%22their+product%22&restrict_sr=on&sort=new` - **Links to competitor pages:** `reddit.com/domain/competitor.com/.rss` - **Comparison discussions:** `reddit.com/search.rss?q=%22your+product+vs%22+OR+%22vs+your+product%22&sort=new` - **Track a competitor's official Reddit account:** `reddit.com/user/CompetitorOfficial/.rss` For a broader competitive monitoring strategy, see our [competitive intelligence guide](/blog/competitive-intelligence-strategy-program). #### Security and incident monitoring Security teams can monitor subreddits where vulnerabilities and incidents are discussed. Reddit is often where zero-day exploits and outage reports surface before official vendor advisories. - **Security research across communities:** `reddit.com/r/netsec+cybersecurity+InfoSecNews/new/.rss` - **Outage and incident reports:** `reddit.com/r/sysadmin+devops+aws/search.rss?q=outage+OR+incident+OR+down+OR+breach&restrict_sr=on&sort=new` - **CVE tracking:** `reddit.com/search.rss?q=CVE-2026&sort=new` - catches any newly discussed CVE from 2026 - **Vendor-specific security:** `reddit.com/r/netsec/search.rss?q=cloudflare+OR+aws+OR+azure&restrict_sr=on&sort=new` This pairs well with monitoring [GitHub releases and changelogs](/blog/monitor-github-releases-changelogs-documentation) and [API change monitoring](/blog/monitor-rest-apis-breaking-changes) for a complete technical monitoring workflow. #### Real estate and local markets Many city and neighborhood subreddits are where locals discuss housing, pricing trends, and off-market opportunities: - **Housing discussions in a specific city:** `reddit.com/r/AskSF+sanfrancisco/search.rss?q=apartment+OR+rental+OR+lease&restrict_sr=on&sort=new` - **Real estate investing:** `reddit.com/r/realestateinvesting/new/.rss` with keywords "deal, under market, foreclosure" For dedicated real estate monitoring, see our [Zillow and Redfin monitoring guide](/blog/zillow-redfin-monitoring-home-prices-new-listings). ### Tips for Effective Reddit Monitoring **Use the `/new` sort for time-sensitive content.** The default subreddit feed is sorted by Reddit's algorithm, which prioritizes engagement over recency. If you need to catch posts as soon as they appear, use the `/new/.rss` variant. **Combine multiple subreddits into one monitor.** Instead of creating separate monitors for r/webdev, r/javascript, and r/react, use `reddit.com/r/webdev+javascript+react/.rss` as a single feed. This saves monitor slots on your plan. **Use search feeds for cross-subreddit keyword tracking.** If you care about a keyword regardless of which subreddit it appears in, use the global search feed: `reddit.com/search.rss?q=your+keyword&sort=new`. **Add `.rss` to any Reddit URL.** If you find a Reddit page you want to monitor, try appending `.rss` to the URL. Most Reddit pages have corresponding RSS feeds, even if they are not linked anywhere on the page. **Quote exact phrases with URL encoding.** To search for an exact phrase, wrap it in quotes in the search query: `reddit.com/search.rss?q=%22exact+phrase%22&sort=new`. The `%22` is the URL-encoded quotation mark. ### How Reddit Feeds Work in PageCrawl When you monitor a Reddit RSS feed, PageCrawl uses its fast engine to fetch and parse the feed directly over HTTP. No browser is launched, which means checks are faster and use fewer resources than browser-based monitoring. Each feed item (post) is tracked individually by its unique ID, so PageCrawl can tell you exactly which posts were added or removed between checks. AI summaries are supported on Reddit feeds. If you enable AI analysis, PageCrawl will summarize the new posts and assign a priority score so you can quickly see which ones deserve your attention. This is particularly useful for high-volume subreddits where dozens of new posts appear between checks. For more on RSS feed monitoring in general, see our [complete RSS monitoring guide](/blog/monitor-rss-feeds). ### Choosing your PageCrawl plan PageCrawl's **Free plan** lets you monitor **6 pages** with **220 checks per month**, which is enough to validate the approach on your most critical pages. Most teams graduate to a paid plan once they see the value. | Plan | Price | Pages | Checks / month | Frequency | |------|-------|-------|----------------|-----------| | Free | $0 | 6 | 220 | every 60 min | | Standard | $8/mo or $80/yr | 100 | 15,000 | every 15 min | | Enterprise | $30/mo or $300/yr | 500 | 100,000 | every 5 min | | Ultimate | $99/mo or $999/yr | 1,000 | 100,000 | every 2 min | Annual billing saves two months across every paid tier. Enterprise and Ultimate scale up to 100x if you need thousands of pages or multi-team access. At an engineering hourly rate, Standard at $80/year pays for itself the first time you catch a breaking API change, a deprecated endpoint, or a silent config change before it takes down production. 100 monitored pages is enough to cover the changelogs and docs of every third-party API your stack depends on. Enterprise at $300/year adds higher check frequency, 500 pages, and full API access. All plans include the **PageCrawl MCP Server**, which plugs directly into Claude, Cursor, and other MCP-compatible tools. Developers can ask "what changed in the Stripe API docs this month?" and get a summary pulled from your own monitoring history. AI assistants can create monitors through conversation on every plan, including Free, and paid plans add on-demand checks and monitor management, turning your tracked pages into a living knowledge base instead of a pile of alert emails. ### Getting Started Start with one or two subreddits that matter most to your work. Set up the RSS feed, add keyword filters if the subreddit is high-volume, and let it run for a week. Once you see how the alerts fit into your workflow, expand to search feeds for brand monitoring, domain feeds for link tracking, or multi-subreddit feeds for broader coverage. PageCrawl's free tier includes 6 monitors and 220 checks per month, which covers half a dozen subreddits checked hourly with room to spare. --- Need more? The complete PageCrawl.io help center, with every article, is available as a single document at https://pagecrawl.io/llms-full.txt. Read it for context on anything this page does not cover.