Substack Search: How to Find Someone on Substack by Name (2026)

Substack is a publishing platform where writers run paid and free email newsletters directly to subscribers. It has grown into one of the largest independent publishing ecosystems online, covering everything from political commentary to finance, health, and creative writing. If you are trying to find a specific writer on Substack, you have probably already discovered that the native search does not always work the way you expect. Here is what actually works, and what to do when the platform’s own tools come up short.

How to Search for Someone on Substack

Using Substack’s Native Search

Substack’s search bar is accessible from the main navigation at substack.com. It searches across publication names, writer names, and topics simultaneously.

How to use it:

• Go to substack.com and click the Search icon in the top navigation
• Type the writer’s name, publication name, or topic into the search bar
• Browse the results for the matching publication or writer profile

The documented reliability problem:
Substack’s native search is widely reported by users as unreliable even when searching an exact name with correct spelling. The search does not function like Google, it does not index every publication and it does not return comprehensive results for all writers on the platform. A writer who has been on Substack for years with thousands of subscribers can fail to appear in a native search entirely.

If a search returns no results or the wrong results, that is not confirmation that the person is not on Substack. It is more likely a reflection of how the native search works.

Using Substack’s Explore Page

The Explore page at substack.com/explore surfaces featured and trending publications organized by category. This is useful for discovery browsing by topic but is not a person-specific search tool. It surfaces publications Substack has chosen to promote rather than returning all publications matching a name or topic.

What to Do When Substack’s Search Does Not Find Them

Google Site Search

Google indexes Substack publications more reliably than Substack’s own search does. The site search operator restricts results to Substack’s domain and returns publications and writer profiles that the native search misses.

How to use it:

• Search site:substack.com “Firstname Lastname” in Google
• Add a topic or publication name alongside the name to narrow results for common names
• For example: site:substack.com “James Williams” finance returns only Substack pages mentioning that name in a finance context

This is the single most reliable free method for finding a specific writer on Substack when the native search has failed.

Guessing the Direct URL

Most Substack publications follow a predictable URL format: name.substack.com. If you have a reasonable guess at what the writer’s Substack subdomain might be, trying it directly in a browser is faster than any search.

Common variations to try:

• firstnamelastname.substack.com
• firstname.substack.com
• firstnamelastname99.substack.com or similar number variations
• A publication name rather than a personal name if the newsletter has a distinct title

If the URL exists, the publication homepage loads immediately. If not, it redirects to Substack’s main page.

Twitter/X Connected Account Discovery

Many Substack writers promote their newsletters on Twitter/X and link their Substack directly in their bio or pinned posts. If you know the person’s Twitter handle, checking their profile for a Substack link is often faster than any search method.

Substack also previously offered a connected-account discovery feature that surfaced Substack publications from people you follow on Twitter/X. This integration has changed over time as the relationship between the platforms has shifted, but checking a known Twitter account for a linked Substack remains a reliable free approach.

Find a Substack Writer’s Real Identity

The Pseudonymous Writer Problem

Substack allows writers to publish under any name they choose. Many legitimate writers use pen names for professional reasons. Others use pseudonyms specifically to separate their Substack identity from their real-world presence. A Substack profile name tells you what the writer wants to be called, not necessarily who they are.

This matters most when someone has cited their Substack as evidence of expertise or credibility before initiating direct contact, a pattern covered in detail in our guide to the ten places scammers build fake credibility online.

Reverse Image Search the Profile Photo

If the writer has a profile photo, it is the fastest available verification starting point.

How to do it:

• Right-click the profile photo on their Substack page and save it, or screenshot it if saving is blocked
• Upload it to Social Catfish’s reverse image search
• Review results for the same face appearing under a different name or on other platforms

Social Catfish uses facial recognition rather than file matching, which finds the same face across different photos on platforms that Google cannot index. A genuine writer’s photo appears consistently under their own name and byline across their other professional platforms. A fabricated or borrowed photo traces back to someone else’s social media or appears under multiple different identities.

Cross-Reference the Handle Across Platforms

If the writer uses a consistent handle or pen name across platforms, searching that name or handle outside Substack builds a cross-platform identity picture.

Where to check:

• Twitter/X biography and pinned posts for a Substack link
• LinkedIn for a matching professional profile under the same name
• Google for any mentions of the name alongside the publication or topic
• Any platform where the writer claims to be active in their Substack bio

Social Catfish’s username search cross-references a handle across hundreds of platforms simultaneously rather than requiring you to check each one manually, returning every account where that name or username is active.

Find Someone on Substack From a Name, Email, or Photo

Substack has no native phone number lookup, email search, or photo-based search. The platform’s search only accepts names, publication names, and topics. If you are starting from a phone number, email address, or photo rather than a name, Substack’s own tools provide no path forward.

Social Catfish reverse search covers all three starting points:

• Reverse email search — enter an email address and the search returns every platform account registered to that address, which may include a Substack subscription or publication alongside other linked accounts
• Reverse phone search — enter a phone number and the search returns the real name and linked accounts registered to that number, connecting a phone contact to a Substack identity if one exists
• Reverse image search — upload any photo and the facial recognition finds where that face appears online and under what names, surfacing a Substack profile even when the writer uses a different name on the platform than they do elsewhere

These searches are the only available routes from these starting points to a confirmed Substack identity. All searches are completely confidential and the person being searched receives no notification.

FAQ

Conclusion

Substack's native search is the obvious starting point but the least reliable free option. The Google site:substack.com search and direct URL guessing cover the cases the native search misses most effectively. For writers using pseudonyms or when the search goal is identity verification rather than just finding the publication, Social Catfish's reverse image search, username search, and reverse contact lookup cover the identity layer that Substack's own tools are not designed to provide. A publication name is easy to find. Confirming who is actually behind it takes one additional step.