50.7% of Websites Have No Preview Image Set for Links Shared on Social Media and Chat

A happy customer pastes a landscaper's website link into the neighborhood Facebook group with a glowing recommendation. The post shows a bare web address, or a stretched crop of the company logo, next to a competitor's link with a big photo of a finished garden. The neighbors click the photo.

That preview card is built from a few tags in the page code called Open Graph tags. Facebook, LinkedIn, X, Slack, WhatsApp and iMessage read them to show a title, a short description and an image whenever a link is shared. The og:image tag sets the picture. For a local business, many recommendations travel as shared links in texts, group chats and social posts, so the preview is often the first thing a new customer sees.

Half the web leaves it to chance. 50.7% of website homepages have no og:image tag, and the most visited websites skip it just as often as small ones: 50.6% of the top 10,000 against 50.5% of small business websites.

We used the September 2026 HTTP Archive, a public dataset that tests millions of websites every month and records the code of each homepage. We read the Open Graph tags on 15,469,112 mobile homepages and counted those with no preview image tag: og:image, or its variants og:image:url and og:image:secure_url.

We grouped homepages by popularity using Google's Chrome UX Report: the 10,000 most visited websites, websites ranked 10,000 to 1 million, and websites outside the top million, where most small and local business websites sit. We compared the result with a second brand basic set in the same part of the page, the favicon, the small icon shown in browser tabs.

That is 7,846,467 homepages. The rate is almost flat across popularity: 50.6% of the 10,000 most visited websites have no preview image, and 50.5% of small business websites. Websites ranked 10,000 to 1 million stand out, missing the tag 54.6% of the time, four points more than the top 10,000 or the small business group.

The flat rate is the key result. The most visited websites, whose links get shared the most, skip the preview image just as often as small ones. That points to defaults rather than budget: a website gets a preview image when its theme or builder sets one automatically, and goes without when nobody fills in the field.

The favicon, the small icon in a browser tab, is another piece of brand display set in the same part of the page code. 14.1% of homepages declare no favicon, so the preview image is missed more than three times as often. The pattern holds at every level of popularity.

The difference is defaults. Most themes and website builders ask for a site icon during setup, while a share image is usually an optional field in an SEO plugin or a page settings panel that many owners never open. A missing og:image means the site owner is not choosing what people see when the link is shared.

Paste your homepage link into a message to yourself and look at the preview. If it shows no image or the wrong one, set a share image in your SEO plugin or site settings. Use a 1200 by 630 pixel image with your logo or a clear photo of your work, and check the preview again after you publish.

Do the same for the pages people share most: services, offers, reviews and blog posts. Each page can have its own preview image, and most builders have a field for it in the page settings. Our small business web design projects set a preview image for every page at launch, so every shared link carries a picture you chose.

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