How to Post a Link on a Facebook Comment

Posting a link in a Facebook comment seems basic, but doing it the right way can be the difference between driving real traffic and coming across as spam. This guide will walk you through not only the simple mechanics but also the strategies that social media pros use to share links that get clicks, spark conversations, and build brand authority.

The Simple Steps: How to Drop a Link in a Comment

First, let's cover the fundamentals. The process is straightforward whether you're on a computer or your phone, but there are a few nuances to be aware of.

How to Post a Link on a Desktop

Using Facebook on a laptop or desktop computer gives you the most screen real estate and makes copy-pasting a breeze.

1. Copy the full URL: Go to the webpage you want to share. Highlight the entire web address in your browser's address bar (including the "https://" part) and copy it to your clipboard (Ctrl+C on Windows, Cmd+C on Mac).
2. Find the comment field: Navigate to the Facebook post where you want to leave your comment.
3. Paste the link: Click into the "Write a comment..." box and paste the link you copied (Ctrl+V on Windows, Cmd+V on Mac).
4. Wait for the link preview: Give Facebook a second or two. It will automatically fetch the link’s information and generate a preview card. This card usually includes a main image, a title, and a short description.
5. Add your context (this is important!): Once the preview appears, you can actually delete the long, clunky URL from your text. The preview card itself is clickable, so the link text is no longer needed. Use this clean space to write a message explaining why you’re sharing the link and what people will find when they click it.
6. Post your comment: Hit the "Enter" key on your keyboard to post the comment. Done!

How to Post a Link on the Facebook Mobile App

The process is nearly identical on your smartphone, but it involves tapping and holding instead of keyboard shortcuts.

1. Copy the URL: Open your mobile browser and navigate to the page you want to share. Tap the address bar, and then use your phone's built-in "copy" function.
2. Navigate to the Facebook post: Open the Facebook app and find the post you want to comment on.
3. Paste the link: Tap on the "Write a comment..." field. When the keyboard pops up, tap and hold on the text field until a "Paste" option appears, then tap it.
4. Let the preview load: Just like on desktop, wait a moment for the rich link preview to generate.
5. Write your context: Give your link a great introduction. Explain what it is and why it's worth a click. Once the preview box is loaded, the raw URL is cosmetic and can be deleted to clean up your comment.
6. Send it: Tap the send icon (usually a paper airplane) to post your comment.

Beyond Pasting: Best Practices for Sharing Links Like a Pro

Anyone can paste a link. The goal is to post a link someone will actually want to click. This is where strategy and etiquette come in. Dropping a raw link without explanation is the fast track to being seen as spammy. Here’s how to do it better.

Rule #1: Always, Always Add Context

Never just drop a link and run. This is known as "link-dropping," and it's a huge turn-off. It feels impersonal, lazy, and often gets flagged as spam by both users and algorithms. Instead, frame your link as a helpful contribution to the conversation.

• Poor Example: https://myawesomeblog.com/article
• Great Example: "This is such a great point about morning routines! I actually found that consistency was harder than the routine itself. I wrote a bit about my own struggles and the three tricks that finally made it stick. You can check it out here if you're interested:"

The second example adds a personal touch, shows you’ve read the original post, and gives people a compelling reason to click. It turns the link from an advertisement into a resource.

Rule #2: Read the Room (and the Rules)

Not all Facebook spaces are created equal. Dropping your business link on a competitor's brand page is generally a bad look. Tossing promotional links into a support group can get you banned. Before you post, ask yourself:

• What are the group rules? Most Facebook Groups have specific rules listed, and "No Self-Promotion" is a common one. Make sure you're allowed to share links before you do. If promotion is limited to a specific weekly thread, respect that.
• Is this helping or hijacking? Is your link a relevant and helpful addition to the current discussion? Or are you just trying to divert attention to your own content? The former builds community, the latter burns bridges.
• Would I be annoyed by this comment? This is the ultimate sniff test. If you saw someone else post the exact same comment, would you find it helpful or annoying? If it’s the latter, rework your approach.

Strategic Ways Marketers Use Links in Comments

For brands and content creators, Facebook comments are a powerful and often underutilized channel for engaging with an audience and driving traffic. It’s about being present where the conversations are already happening.

Answering Questions Directly with Resources

This is arguably the most powerful and authentic way to share a link. Monitor comments on your own page or in industry groups. When someone asks a question that your content can answer, you have the perfect opportunity.

Example: A baker shares a photo of a perfect sourdough loaf.
Commenter: "I can never get my crust to be that dark and crispy! What's your secret?"
Baker's Reply: "That was the hardest part for me, too! The secret is a combination of steam and high heat. I wrote down my exact method in a blog post, hope this helps you out: [link to sourdough crust tutorial]"

In this scenario, the link isn't a promotion, it's a solution. This builds tremendous trust and positions you as a helpful expert.

Activating High-Engagement Posts

Have one of your own posts getting a ton of comments and shares? You can leverage that momentum. After the post has been up for a while, hop back into the comment section to add a "super-comment" with a relevant call to action.

Example: A productivity coach posts a viral video about beating procrastination. A day later, they add a new comment.
Coach's Comment: "Wow, so amazing to see how many people this resonated with! If you want to learn more techniques like this, I have a free 5-day email course on building better habits. You can sign up here: [link to email course landing page]"

This approach avoids making the original post feel too "salesy" but still takes advantage of the massive visibility and engaged audience.

Troubleshooting Common Link-Posting Problems

Sometimes, things don’t go as planned. Here are fixes for the most common issues you might encounter when posting a link on a Facebook comment.

My Link Preview Isn't Working or Looks Wrong

You paste a link, and... nothing happens. Or the picture is outdated, or the title is wrong. This is usually a caching issue on Facebook's end.

• The Fix: Use the Facebook Sharing Debugger. This is Facebook’s own tool for developers, but it’s invaluable for marketers. Google "Facebook Sharing Debugger" and paste your URL into it. Click "Debug." This will show you exactly what information Facebook sees for your link. More importantly, click the "Scrape Again" button. This forces Facebook to re-crawl your link and update its cache with the latest title, description, and image. After you’ve scraped it again, try posting the link in a comment one more time.

My Comment Was Marked as Spam or Removed

This usually happens for a few reasons: the user who posted it blocked you, a group admin removed it, or Facebook's automated filters flagged it.

• The Fix: Re-evaluate your approach. Were you link-dropping without context? Did you post the same link in 10 different places in a short amount of time? Take a step back and focus on adding more text and value around your link. Make your comment more conversational and less promotional.

The Link Preview Disappeared After I Pasted It

Occasionally, you'll paste your link, see the preview generate, and then it vanishes a moment later. This is often a temporary glitch in the Facebook interface.

• The Fix: Delete the comment and try again. Sometimes a simple refresh is all it takes. You can also try closing and re-opening the app or browser tab. If it persists, run the link through the Facebook Sharing Debugger to make sure everything is technically sound on the website’s end.

Final Thoughts

Posting a link in a Facebook comment is simple mechanically, but the strategy behind it defines its success. By moving beyond simple link-dropping and focusing on adding genuine value, answering questions, and participating in conversations, you can transform a simple link into a powerful tool for community building and traffic generation.

Juggling replies and dropping valuable links across Facebook, Instagram, and other social platforms can quickly become overwhelming. Keeping track of all those important conversations is tough. We actually built Postbase to solve this exact problem, with a unified inbox that brings all your comments and DMs from every platform into one simple feed. It makes it so much easier to stay on top of engagement and build your community without hopping between five different apps.