Before you examine the logo, the lining, or the serial number, look at the stitching and feel the hardware. These are the two tells that survive in listing photos, that fakes consistently get wrong, and that take under a minute to check. Counterfeiters invest in the visible branding because that is what buyers look at. They economize on construction because most buyers never look there. That gap is your advantage.
Authentic luxury bags have high, even stitch density: the stitches are small, uniform, and evenly spaced, typically more stitches per inch than a fake manages. Counterfeit factories sew faster with longer stitches to save time, so the first thing to check in a close-up photo is whether the stitch length looks tight and regular. One wobbly line or a sudden change in spacing is a flag.
Check the backside of the stitching where visible, inside pockets or under flaps. Authentic work is clean on both sides; fakes often show loose threads, knots, or uneven tension on the reverse because the quality control only inspects the outside. Also look at stress points: handle attachments, strap anchors, corners. Real bags reinforce these with dense, sometimes doubled stitching. Fakes attach handles with the same light stitching as the decorative seams, which is both a tell and the reason fake handles tear off.
Real hardware has heft. Zippers, clasps, and chain straps on authentic bags are made from solid metal alloys that feel substantial. Fakes use plated lightweight alloys or plastic cores that feel hollow and tinny. You cannot weigh a listing photo, but you can ask the seller for the bag's weight and compare it to the authentic specification, and you can look at how the hardware sits: heavy hardware hangs and drapes a specific way that light hardware cannot imitate.
Engraving is the photo tell. Authentic engraved logos on hardware are crisp, evenly deep, and precisely aligned. Fake engraving is often shallow, blurry at the edges, or slightly off-center, because it is laser-etched quickly rather than stamped with proper dies. Zoom into every hardware close-up the listing provides. If the listing provides no hardware close-ups, that absence is itself information.
Stock photos or manufacturer images instead of photos of the actual bag mean the seller does not want you examining anything. Heavy filters, soft focus, or low resolution on exactly the detail shots, stitching, hardware, date codes, are deliberate. A legitimate reseller photographs flaws proudly because flaws prove authenticity work was done; a counterfeit seller hides everything that is not the logo.
Count the photos. Serious resellers post twenty or more images including macro shots of stitching, hardware engraving, interior labels, and date codes. Listings with five glossy photos and a paragraph of authenticity claims are selling the claims, not the bag.
Message the seller and request three specific photos: a macro of the stitching along one seam, a close-up of the zipper pull engraving, and the interior label or date code. Legitimate sellers comply within a day because they took these photos during authentication anyway. Counterfeit sellers stall, refuse, send different photos than requested, or get hostile. The response to this request is as diagnostic as the photos themselves.
Ask one factual question too: where was this bag purchased originally, and is the receipt available? Vague answers, "from a supplier," or receipts that look generated rather than photographed are disqualifying. Real provenance has boring, specific details.
Are super-fakes undetectable from photos?
High-tier fakes close the gap on branding but still usually miss on stitching density and hardware weight, because those cost real money to replicate. Photos plus the seller-behavior test catch the large majority.
What about vintage bags with worn stitching?
Wear is different from poor construction. Authentic vintage shows even wear: consistent patina, uniformly aged thread. Fakes show uneven construction from day one. Compare the bag's condition to its claimed age; inconsistency is the tell.
Should I pay for professional authentication?
For anything over a few hundred dollars, yes. Photo authentication services are inexpensive relative to the purchase price, and their verdict is also your evidence if you need to file a claim later.
Reverse image search the photos. Counterfeit listings reuse the brand's campaign images, and the search takes you to the genuine product and its real price in seconds, which settles most questions on the spot.
The genuine ones run by the brand are. The risk is lookalike outlets: verify the site through the brand's own store locator or main site links rather than through the ad or message that brought you there.
Because photography is the product online. Stolen images carry the design, quality, and reputation the counterfeiter cannot manufacture, and they cost nothing to copy. It is also why image based monitoring finds fakes efficiently.