Attribution is an integral part of any digital marketing strategy. But what if your customers are talking about and evaluating your products in a place you can’t track? This is often when people talk about your brand in informal settings that are difficult to monitor. Welcome to Dark Social.
Dark Social has nothing to do with the Dark Web. It’s about knowing where your buyers spend their time online before you get intent data or they become qualified leads.
Much of this activity happens in private conversation, such as one-on-one or small group chats, which are not visible to marketers. If you’re a marketer or social media manager, it’s an important concept.
What is Dark Social?
Dark Social refers to web traffic from sources that your attribution software can’t track. It consists of links, social sharing, and all the conversations people have in private messaging apps, Slack channels, Zoom calls, etc.
It also refers to web traffic generated after prospects listen to a podcast, have in-person chats, or content shared via a link shortener.
The term was coined in 2012 by Alexis Madrigal, writing in the Atlantic. It has since been popularised and expanded upon in several other articles.
If you’ve ever seen an article your friend liked and sent them the URL via Facebook Messenger as a direct message, then you’ve used a type of Dark Social sharing. If your friend clicks the link, web analytics software counts this referral traffic as your friend punching in the URL. However, we know that’s not true.
Aside from sharing links, dark social posts—such as content shared privately through messaging apps, emails, or targeted paid social ads—represent another form of content sharing that occurs outside of public feeds and is challenging to track.
Intent matters
Leveraging intent data has become a crucial component of modern marketing. Marketing teams use prospects’ intent data as a trigger to target specific users. Typically, it utilizes visible sources, such as cookies, demo requests, and social media likes, among others.
But what if your prospects have been discussing and searching for a solution well before the first signs of intent come across your radar? If they are using private messaging apps and Facebook groups, they probably are.
During this critical stage, you’re not marketing to them. In some scenarios, they’ve completed crucial steps of their buying journey without you being able to influence their choices.
Additionally, you don’t know which of your marketing channels, content, or links receives the most interest. This lack of insight means you’re only getting partial information about what is working for your business and missing a deeper understanding of buyer behavior in dark social.
This situation is a significant problem for B2C and B2B marketers
Examples of Dark Social channels
The easiest way to explain Dark Social — and why it’s so challenging to track Dark Social traffic — is by listing a few examples. Once you consider the volume of sharing and communication that happens on these channels, you’ll have a good idea of why missing out on this referral data is a problem for modern marketers.
Here are a few Dark Social examples:
Communities & Groups
Slack groups/channels, Facebook groups, Discord, etc. These communities bring together like-minded individuals who share recommendations and advice in a private setting.
Content Platforms
Apple Podcast, Spotify, YouTube, etc.
Social Platforms
LinkedIn, TikTok, Instagram, Reddit, X, etc
Direct Word of Mouth
DMs, private messages, text messages, Zoom calls, etc.
Third-Party Events & Meetups
People can discuss your brand on podcasts, videos, or via social media shares without mentioning your name in the title or hashtags. These are public mentions about your brand that may seem unfavorable to you and never get recorded in your CRM.
The Role of Private Messaging in Dark Social
Private messaging drives dark social, where users share content in spaces traditional analytics can’t track. B2B buyers frequently discuss products, services, and trends with trusted contacts through direct messages, closed Slack channels, and private conversations. These influential discussions happen beyond marketers’ view, making it difficult to measure how content truly spreads in the market.
How private messaging apps drive untracked sharing
Private messaging apps, such as Facebook Messenger, WhatsApp, and Slack, create a blind spot in your analytics.
When someone shares your link privately and their friend clicks it, Google Analytics records this as “direct traffic,” missing the real source. For example, if User A sends a link via Facebook Messenger to User B, and User B visits your site, analytics treats it as a direct visit.
This gap means you’re missing valuable insights about which messaging channels drive traffic and conversions. As private sharing grows, marketing decisions are increasingly based on incomplete data.
Why B2B buyers prefer private channels
B2B buyers flock to private channels for three main reasons. First, private messaging apps provide a secure space for discussing deals and sharing sensitive information without fear of eavesdropping.
Second, these channels cut through distractions, enabling focused, meaningful conversations with like-minded people. Finally, private messaging enables buyers to share content and ask questions freely, without the pressure of public scrutiny or outside influence.
For example, a B2B buyer sharing a blog post in a private Slack community sparks honest, practical discussions among peers facing similar challenges. These private conversations drive the modern B2B buying journey—yet they remain invisible to most marketers.
Implications for marketers
Private messaging in dark social changes the game for marketers. A significant portion of your website traffic originates from dark social channels, rather than the referral sources you’re currently tracking. Your analytics underreport what’s truly working.
So, create content people want to share privately—make it so good they can’t resist sending it to friends. Utilize UTM codes to track this hidden traffic and utilize social listening tools to capture brand mentions in private conversations. Build branded communities and forums to deepen engagement.
The payoff: access to unseen conversations, increased brand visibility, and traffic that converts. Dark social isn’t going away; savvy marketers work with it, not against it.
Google Analytics counts Dark Social as Direct Traffic
If you use Google Analytics to track web visitors, you’ll notice that direct traffic often appears as the largest source. This traffic is usually assumed to come from users manually entering your URL or clicking a bookmark. However, that’s rarely the case today.
Because analytics software can’t attribute many shared links correctly, marketers lose insight into where traffic truly originates. Dark social media sharing generates significant dark social referral traffic; however, without referrer data, it’s challenging to measure the impact of individual campaigns or channels.
Creating an advanced segment in Google Analytics can help filter specific pages or user types, making it easier to analyze dark social referral traffic and understand visitor behavior.
The issues with attribution software
Most marketers use attribution software to understand customer intent. However, analytics programs can only tell when you have traffic from a known source. When users share links privately, it’s impossible to know where dark traffic originates.
This situation can make it challenging for businesses to assess the effectiveness of their marketing efforts. Dark social complicates direct attribution, making it difficult to connect conversions to specific marketing activities or channels.
Any social link that is shared without referral information is considered Dark Social. Dark Social traffic sources comprise many of the links shared by B2B customers.
This problem is complex to address because Dark Social channels are challenging to measure.
Dark Social’s measurement problem
Most of the web traffic brands get is from Dark Social sharing. This direct traffic is hard to track via Google Analytics and is not easily measured.
While social sharing buttons help track some activity, they have limits. Content shared without links—like images, memes, or native videos—often goes untracked. Link shorteners and switching from secure (HTTPS) to non-secure (HTTP) URLs can also disrupt tracking.
Additionally, if someone later searches your brand on Google and converts, analytics may credit search ads instead of the original Dark Social content. This leads to incomplete data and misattributed conversions.
Why should I care about Dark Social traffic sources?
Why should Dark Social matter to brands? Here is a quick rundown on why you should care.
As a marketing professional, understanding dark social is crucial because it impacts how content is shared privately and how you track the effectiveness of your campaigns.
Dark social sharing is huge
Some resources suggest that Dark Social traffic accounts for around 90% of searches. The sheer volume of users sharing content through private channels, messaging apps, and emails means a massive amount of content is circulated via untracked sources. If almost four-fifths of your data sources come from unknown sources, it’s tough to know what’s working for you and what’s not.
Gen Z are using TikTok and Instagram for search
According to TechCrunch, approximately 40% of Gen Z users utilize TikTok and Instagram for search purposes. If this trend continues, it means that some of the traditional methods we use to measure web traffic and conduct SEO will become obsolete.
Target different demographics
Depending on which user type your business targets, they might prefer dark social sharing. Statistics suggest that almost half of the lucrative 55+ market exclusively shares links via dark social.
Make an early impact
Once you understand that buying starts in Dark Social, you need to find a way to make an impact in these places. Investing resources in these hard-to-measure channels is essential because they are an influential aspect of the real customer journey.
Social posts, which are often shared privately or discussed in closed groups, play a key role in driving early engagement and awareness that traditional attribution tools may overlook.
It excludes your brands from conversations
If people are discussing your brand on YouTube, Instagram, or Facebook, you can join the conversation. They might have questions you could answer, which could position your brand as helpful and caring.
But if these conversations happen in private, you’re robbed of the opportunity. For example, tech companies are frequently discussed in private channels, making it harder for brands to participate or respond.
Worse still, if a customer has a problem with your product or service, you won’t know about it. Instead of being able to address and resolve their issue, they’ll never come on your radar.
You can’t track sentiment
Public conversations allow you to track consumer sentiment. This process provides a more comprehensive understanding of how your customers or target audience perceives your brand, offering valuable feedback to enhance your product.
No control over distribution
If most of your content is distributed via dark social, it may not reach a sufficiently broad audience. Many people’s social circles are small, and their networks are limited. You want word of mouth to get as many people as possible, but you won’t know if these social webs lack diversity.
The cookie is dying
Internet privacy has become a big concern. Apple and Google have made separate moves to end the use of third-party tracking cookies. So now, more customer intent data has “gone dark”, enhancing measurement pains for marketing teams.
How to engage the dark funnel
The dark funnel refers to the hidden touchpoints of the buyer’s journey. It comprises in-person social interactions and conversations on social networks, as well as direct messaging. It also includes podcasts that people listen to and other forms of engagement on different social media channels.
One of the main challenges is tracking the impact of content within the dark funnel, particularly when measuring the effectiveness of specific campaigns. Traditional analytics tools and UTM parameters often fail to capture the contribution of individual marketing efforts to results in these hidden channels.
So, you might think, what can I do?
Well, firstly, it all comes down to content. It’s impossible to game email or people’s instant messages. If you want them to share your content, you’ve got to make it great.
Create demand
If brands want to be selected when people are ready to buy, they need to start by creating demand. Part of Demand Generation is creating content designed to educate, inform, and persuade people. Your content needs to be optimized for consumption on your users’ platform of choice – in other words, make it native.
They’re on social media. Stop relying on sharing links to your website/blog. Some Dark Social channels that you should consider are:
Paid social media
Podcasts
Conferences & Events
Your Community
PR
Word of mouth
The idea here is to create a buzz that will lead to numerous private shares of your content. You don’t need to use each Dark Social channel; instead, look for the one that is most effective and relevant to your product or service.
Capture demand
Once you’ve generated enough interest in the Dark Social web, you can use intent-based marketing to capture leads and convert users.
SEO
Paid ads on search engines
Retargeting
Conversion Rate Optimisation
Direct mail
Sales & pipeline marketing
Once you’ve captured demand, you can utilize your typical marketing or customer journey tactics to move prospects into paying customers through demos, one-on-one marketing, phone calls, and other methods.
How to win at the dark funnel?
Use qualitative data
OK, so you can’t use marketing technology to track Dark Social data. That’s a shame. But nothing is stopping you from collecting qualitative data from your customers. The best way to win at Dark Social is through “self-attribution,” which involves asking people how they heard about your product.
When mapping out a customer journey, you can’t rely solely on a mix of data and assumptions. You need to get out there and have some conversations.
Some options you can use here are to:
Ask customers why they picked your product
Run a win-loss analysis
Incentivize customers to take surveys
Put a “how did you hear about us?” field in your demo request form
For B2B companies, considering attribution is crucial. However, if you only measure intent data, you’re missing a significant amount of essential information.
Embracing Dark Social enables you to measure your marketing more effectively and optimize your content.
Focusing on these channels and directing some investment towards them will help you make a strong impression at a critical early stage.
Become more customer-centric
Winning at Dark Social is about shifting your perspective. Marketing teams have increasingly relied on data and metrics to inform their decisions over the last decade. However, that way of working won’t help you in Dark Social spaces.
The best way to boost your Dark Social share is by engaging your prospects with killer content. And to do that, you need to use real marketing.
Market research is essential here. You need to know what type of content your people are interested in. You also need to develop a keen sense of what type of content they’ll share with their network. That’s a subtle but essential difference.
Create content that ensures your target audience understands what you do. Make it helpful, inspiring, and valuable. That way, when they emerge from the Dark Social spaces — and show their intent — you’ll already have built trust, expertise, and authority.
Don’t Measure – concentrate on what you do best
Spending too much time trying to measure Dark Social is often unproductive. Instead, see it as an opportunity to establish your brand as a leader.
Consider the content you and your network share privately—thought leadership, instructional videos, or research-packed articles. Use your market knowledge and customer data to guide content creation.
If a large share of your web traffic is direct, much of it may be Dark Social. While hard to measure, you can still leverage it.
Paid social and search ads capture intent, but demand often starts in Dark Social. Use surveys and “how did you hear about us?” forms to find where your prospects are and engage them effectively.
