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.
How long should the Image Alt Text be for SEO?
-
When it comes to creating the alternate text for images, what is the character length that I need stay under to rank well?
-
The images on your page should be relevant to your pages content, so describe them with an alt tag naturally will add relevance. The length is not important, but I would not stuff they will a long list of keywords.
-
This is just my feel for this after watching my own sites pull in thousands of visits per day from image search, but I have not done systematic study.... and Google could have changed even if I did systematic study.
First, I say that character count is irrelevant. What you need to focus on is the keywords you want to be visible for.
If you are optimizing for image search, I would use very specific keywords. The exact keywords that you want your image to rank for. AND, most important, the exact keywords that people will relate your image to. If you call it a duck and it ain't a duck, that blows the value of alt text. Google knows a little about this stuff, even if they make the news by messing up once in a while.
If you are optimzing for websearch, I would use the specific keywords for my webPAGE on the highest image in the code of the page. It is really important to give people an image that their query relates to. If your page is about ducks and you image is a weasel, they are going to leave.
After that, it I mix it up, keeping relevant to the image and relevant to the page.
-
There isn't really any limit, like there is for page titles, meta descriptions, etc. Typically you'll want the ALT text to explain what's in the image--the original purpose was to show the user what the image was before it was downloaded, and also for vision impaired folks, the screen readers would read to them what was in the image by reading the ALT text.
If you're looking for the image to reinforce the relevance of the page for the page's target topic, then make sure that the topic term is in the ALT text, usually as part of a long phrase or sentence. If you're looking for the image to rank well in Google image search, then I'd keep the ALT text to just what the target term is (and of course make sure the page title reflects that term as well).
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
-
Does Autoplay video effect SEO?
I'm trying to find out if autoplay videos (muted) on the homepage effect seo in anyway? Currently our site ranks around position four on the first page, but we have noticed one competitor we monitor have long auto playing videos on their sites and were wondering if they are a good or bad factor? Any info you would like to share would be great. Thanks
Image & Video Optimization | | 5TW0 -
Why are my blog slideshow images not indexed?
I'm managing a design blog hosted on WordPress. Each "design project" article includes a slideshow with additional images (and captions) for the project - these are images and text not found in the article itself. Every slide has the same page path as the article, but a different query param at the end. So if the article is /article the first slide would be /article?slide=1 for example. I'm having two issues: The slideshow images don't seem to be getting indexed. Screaming Frog reports duplicate meta descriptions and title tags for each slideshow page (same meta as article). I want to do what's best overall from an SEO perspective. Having the slideshow images show in Google image search is a must. And having the captions indexed might help too? But I want the Google image results linking to the article and not the individual slideshow pages. And I don't want duplicate meta issues. What's the best thing to do? Submit a sitemap that lists both article and slideshow images? "Rel canonical" the param'd slideshow urls to the base article url (not sure this makes total sense, since slide content is different from the article)? Get rid of slideshow altogether and put images in body? Some combo of these? Hopefully this makes sense. Any thoughts appreciated!
Image & Video Optimization | | theoHP0 -
Why is my image Alt Text showing up under my URL and title on the Google results page?
I just realized this happened 😞 I optimized this page over a week ago. I changed out the old image on the page, along with the Alt Text. Now I see this when I do a search for it. No Beuno. Can some one please tell me how I get rid of the alt text in the result. many many thanks in advance. http://thumannagency.com/business-insurance/contractors-insurance Contractors Liability, Work Comp Insurance in Dallas, Texas ... <cite class="_Rm">thumannagency.com/business-insurance/contractors-insurance</cite>Your page is not mobile-friendly.Dallas, Texas Contractors Insurance. Contractors Insurance Quote. General Contractor working on a roof in Texas. Thumann Agency specializes in providing ...
Image & Video Optimization | | MissThumann0 -
Moving Images to Subdomain: SEO Impacts
For sever work- load enhancements we are planning to move our images to a sub-domain. so the files would be located at something like images.domain.com Rather than domain.com/images/ We are a large Ecommerce site so we have a lot of images. These will be self hosted so we are not using a CDN. I'm hoping someone has done the same and if there were any steps they had wished they had taken before making the move/ if they noticed any traffic impacts things like that.
Image & Video Optimization | | RMATVMC0 -
Local SEO: Links with the citations so should I slow down?
Hello, There seems to be some nofollow and dofollow links building as I add structured citations. Is this a reason to slow down the building citation process if you want the links to count? Do they help organic SEO?
Image & Video Optimization | | BobGW0 -
Is a website with no images really a good idea?
I have a client who doesn't want to use any images at all on her website. It's a local hvac service provider. This thought has never even crossed my mind before. Who wouldn't want pictures? I know image optimization is important, and my mind keeps telling me that images are important for a good site and good user experience, but are they really necessary? I want a second opinion before I advise against not using any images.
Image & Video Optimization | | denarathbun0 -
Video SEO - Why are my videos not being indexed?
Hello All, I work on a site that has a lot of videos. The trouble is none of them are ranking. Here is an example of a page with a video on. If you click the play button you will see But none of these videos are being indexed, as you can see here. Is it because these videos are just mp4 files, rather than being embedded players (like SEOmoz use for instance)? Would embedding videos through Viddler / Wistia / Youtube etc help? Or is there some other issue at work here? Any help on this would be greatly appreciated. Thanks, Rich
Image & Video Optimization | | JBGlobalSEO0 -
SEO benefits of linking logo to homepage?
Hello All, It will be helpful if anyone can list the benefits of linking the company logo (on every page of the website) to the home page, and how important it is in terms of internal linking / SEO factors. Thank you.
Image & Video Optimization | | NortonSupportSEO0