Moz Q&A is closed.
After more than 13 years, and tens of thousands of questions, Moz Q&A closed on 12th December 2024. Whilst we’re not completely removing the content - many posts will still be possible to view - we have locked both new posts and new replies. More details here.
Null Alt Image Tags vs Missing Alt Image Tags
-
Hi,
Would it be better for organic search to have a null alt image tag programatically added to thousands of images without alt image tags or just leave them as is.
The option of adding tailored alt image tags to thousands of images is not possible.
Is having sitewide alt image tags really important to organic search overall or what? Right now, probably 10% of the sites images have alt img tags. A huge number of those images are pages that aren
Thanks!
-
Thanks, guys.
I've adjusted alt images tags on pages that really matter to me for organic. The tens of thousands of other images/pages are just going to have to chillax.
-
No problem at all. To be honest, it's really not a huge deal and probably not worth the dev budget or manhours required.
In most cases with a site like this, I'd be more inclined to add good alt text for all images on the most popular pages then, as you're working through other pages throughout the life of the campaign, update the alt text while you're at it.
If you're already updating the page title or content on a page, it's not that much extra effort to do the alt text while you're there.
-
Hi Eric & Chris,
Thanks for the help. Given the size of the site, tens of thousands of pages and more than one image per average page, I guess my real question is how much trouble is this worth? I don't think the image file name is really going to reliably yield alt img text. So, about the most one could do is possibly a site-wide empty tag. Is this really worth it for organic search? Seems like kind of a phony manipulation to appeal to a search algorithm in maybe some microscopic way. But, I could be wrong, so that is why I'm asking here. If it really matters, we'll do it. But if it doesn't, would rather not. Especially when you consider the next thing will be that having empty alt img tags will some day be a small negative, right? That would be so Google of them.
-
Is it possible to use a script to write? Alternative option is to run a screaming frog crawl looking for all images, download into excel, and use the image file name to help create a tag. That's assuming you've named the image with something specific instead of leaving it default (eg: image4893054893.jpg). Ideally you would want to include image alt tags, and many platforms can help make it easy. Could you give a little more information about your situation? There might be a pattern you can use to update on a large scale. I would not have the same tag applied to all images, because that really doesn't help search engines understand the photo and wouldn't be useful to users who have vision impairments. If you don't have the time to do it, then hire someone to assign alt tags (virtual assistant). Screaming Frog will make it really easy to find all the image files.
-
Naturally in the perfect world, meaningful attributes should be added. Assuming you're a mere mortal with a limited number of hours in the day... the best short-term solution to this is going to be having the alt attribute applied but empty.
To my knowledge (happy to be pointed towards data showing otherwise), there's no real ranking difference between these two options. The reason I prefer to add a blank alt in this instance is because assistive technology (like screen readers for vision impaired users) are going to have a much better experience on your site this way.
If you have a blank alt, the screen readers will essentially ignore the image since they're going to read " ". On the other hand, if you don't have an alt attribute in the , it's going to read the source instead. Even a short img src is going to be cumbersome, especially if you have an image-heavy site!
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
Too many Tags and Categories what should I do to clean this up?
Hello, Everyone! I am trying to do a clean up for one of my client sites. I'm noticing that the Categories and tags are way out of hand. It looks like random tags and categories were just added because they could be added. Are all of these tags and categories contributing to duplicate content? And if so What method should I go about to cleaning this up? The only thing that seems logical to me is rel=canonical. Thank you so much!
Intermediate & Advanced SEO | | Striventa1 -
Two websites vs each other owned by same company
My client owns a brand and came to me with two ecommerce websites. One website sells his specific brand product and the other sells general products in his niche (including his branded product). Question is my client wants to rank each website for basically the same set of keywords. We have two choices I'd like feedback on- Choice 1 is to rank both websites for same keyword groupings so even if they are both on page 1 of the serps then they take up more real estate and share of voice. are there any negative possibilities here? Choice 2 is to recommend a shift in the position of the general industry website to bring it further away from the industry niche by focusing on different keywords so they don't compete with each other in the serps. I'm for choice 1, what about you?
Intermediate & Advanced SEO | | Rich_Coffman0 -
Would changing the file name of an image (not the alt attribute) have an effect of on seo / ranking of that image and thus the site?
Would changing the file name of image, not the alt attribute nor the image itself (so it would be exactly the same but just a name change) have any effect on : a) A sites seo ranking b) the individual images seo ranking (although i guess if b) would be true it would have an effect on a) although potentially small.) This is the sort of change i would be thinking of making :  changed to 
Intermediate & Advanced SEO | | Sam-P0 -
PDFs and images in Sub folder or subdomain?
What would you recommend as best practice? Our ecommerce site has a lot of PDFs supporting the product page. Currently they are kept in a sub domain and so are all images. Would it be better to keep them all in a subfolder? I've read about blogs being hosted on a subfolder to be better than subdomain but what about pdfs and images? thoughts?
Intermediate & Advanced SEO | | Bio-RadAbs0 -
tags inside <a>tags - is this bad?</a>
Hi, I'm currently redesigning my website, and in many places, I've now decided to make links a little bit more obvious for the user, using tags within a <a>tag in order to make the entire block of text clickable. I was just wondering if this could have a negative impact in the search engines. My gut feeling is no, since I'm actually improving usability, but I guess it could have an impact on how Google looks at the anchor text? An example of the HTML is as follows: </a> <a></a> <a></a> [Cristal Night Club Hotels <address>1045 5th Street
Intermediate & Advanced SEO | | mjk26
Miami Beach, FL33139</address> 6.4 miles from Miami Dade County Auditorium](http://localhost:8080/frontend/venue-hotels/cristal-night-club-hotels/301022 "Hotels near Cristal Night Club") Thanks for your thoughts and comments, Best wishes Mike0 -
External 404 vs Internal 404
Which one is bad? External - when someone adds an incorrect link to your site, maybe does a typo when linking to an inner page. This page never existed on your site, google shows this as a 404 in Webmaster tools. Internal - a page existed, google indexed it, and you deleted it and didnt add a 301. Internal ones are in the webmaster's control, and i can understand if google gets upset if it sees a 404 for a URL that existed before, however surely "externally created" 404 shoudnt cause any harm cause that page never existed. And someone has inserted an incorrect link to your site.
Intermediate & Advanced SEO | | SamBuck0 -
Any penalty for having rel=canonical tags on every page?
For some reason every webpage of our website (www.nathosp.com) has a rel=canonical tag. I'm not sure why the previous SEO manager did this, but we don't have any duplicate content that would require a canonical tag. Should I remove these tags? And if so, what's the advantage - or disadvantage of leaving them in place? Thank you in advance for your help. -Josh Fulfer
Intermediate & Advanced SEO | | mhans1 -
Why should your title and H1 tag be different?
Is it dangerous to have your H1 tag and your title the exact same thing? My thought was that it's not be the best use of space, but that it couldn't cause harm. What do you think?
Intermediate & Advanced SEO | | MarieHaynes7