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.
If Robots.txt have blocked an Image (Image URL) but the other page which can be indexed has this image, how is the image treated?
-
Hi MOZers,
This probably is a dumb question but I have a case where the robots.tags has an image url blocked but this image is used on a page (lets call it Page A) which can be indexed. If the image on Page A has an Alt tags, then how is this information digested by crawlers?
A) would Google totally ignore the image and the ALT tags information? OR
B) Google would consider the ALT tags information?
I am asking this because all the images on the website are blocked by robots.txt at the moment but I would really like website crawlers to crawl the alt tags information. Chances are that I will ask the webmaster to allow indexing of images too but I would like to understand what's happening currently.
Looking forward to all your responses
Malika
-
May I ask why you/your webmaster would have noindexed your images in the first place?
-
-
Hi Malika,
Blocking image directories or images themselves in robots.txt only prevents the image from being added to "image" search results. You will still get the full benefit of the alt text on the page, the image just won't appear in the image results.
How this actually works is the crawler will crawl the site and index all the text and weight (h1, h2, alt etc..) then when the crawler moves to add the image to the search cache it finds it can't access it due to robots.txt and simply ignores it and goes on.This leaves your original text as what is indexed as a search result, and nothing for image results.
If you are using Apache you may want to not use robots.txt as the method of blocking images. I would recommend using the .htaccess file with a code like this...
<filesmatch ".(bmp|gif|jpg|png|tif)$"="">Header set X-Robots-Tag "noindex"</filesmatch>
This is a blanket declaration and would prevent indexing of any images with the noted extensions on your site. This is particularly useful if you have multiple image directories. Further more if there are a few images you want indexed you could pick a particular extension like .jpeg for example (note jpeg not jpg), then just convert those few images and know they will be indexed as they are not in the exclusion list.
Another benefit of handling it this way is if you already have images that are indexed, using the noindex tag will get them out out of the image directory much faster than blocking them. The reason is you are giving Google a new directive which is "noindex", otherwise they will just treat them as inaccessible and move on, leaving any cached version to appear in the directory for some time.
Hope that makes sense and helps,
Don
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
-
No Index thousands of thin content pages?
Hello all! I'm working on a site that features a service marketed to community leaders that allows the citizens of that community log 311 type issues such as potholes, broken streetlights, etc. The "marketing" front of the site is 10-12 pages of content to be optimized for the community leader searchers however, as you can imagine there are thousands and thousands of pages of one or two line complaints such as, "There is a pothole on Main St. and 3rd." These complaint pages are not about the service, and I'm thinking not helpful to my end goal of gaining awareness of the service through search for the community leaders. Community leaders are searching for "311 request service", not "potholes on main street". Should all of these "complaint" pages be NOINDEX'd? What if there are a number of quality links pointing to the complaint pages? Do I have to worry about losing Domain Authority if I do NOINDEX them? Thanks for any input. Ken
Intermediate & Advanced SEO | | KenSchaefer0 -
Wrong URLs indexed, Failing To Rank Anywhere
I’m struggling with a client website that's massively failing to rank. It was published in Nov/Dec last year - not optimised or ranking for anything, it's about 20 pages. I came onboard recently, and 5-6 weeks ago we added new content, did the on-page and finally changed from the non-www to the www version in htaccess and WP settings (while setting www as preferred in Search Console). We then did a press release and since then, have acquired about 4 partial match contextual links on good websites (before this, it had virtually none, save for social profiles etc.) I should note that just before we added the (about 50%) new content and optimised, my developer accidentally published the dev site of the old version of the site and it got indexed. He immediately added it correctly to robots.txt, and I assumed it would therefore drop out of the index fairly quickly and we need not be concerned. Now it's about 6 weeks later, and we’re still not ranking anywhere for our chosen keywords. The keywords are around “egg freezing,” so only moderate competition. We’re not even ranking for our brand name, which is 4 words long and pretty unique. We were ranking in the top 30 for this until yesterday, but it was the press release page on the old (non-www) URL! I was convinced we must have a duplicate content issue after realising the dev site was still indexed, so last week, we went into Search Console to remove all of the dev URLs manually from the index. The next day, they were all removed, and we suddenly began ranking (~83) for “freezing your eggs,” one of our keywords! This seemed unlikely to be a coincidence, but once again, the positive sign was dampened by the fact it was non-www page that was ranking, which made me wonder why the non-www pages were still even indexed. When I do site:oursite.com, for example, both non-www and www URLs are still showing up…. Can someone with more experience than me tell me whether I need to give up on this site, or what I could do to find out if I do? I feel like I may be wasting the client’s money here by building links to a site that could be under a very weird penalty 😕
Intermediate & Advanced SEO | | Ullamalm0 -
Redirected Old Pages Still Indexed
Hello, we migrated a domain onto a new Wordpress site over a year ago. We redirected (with plugin: simple 301 redirects) all the old urls (.asp) to the corresponding new wordpress urls (non-.asp). The old pages are still indexed by Google, even though when you click on them you are redirected to the new page. Can someone tell me reasons they would still be indexed? Do you think it is hurting my rankings?
Intermediate & Advanced SEO | | phogan0 -
Image URLs - best practice
Hi - I'm assuming image URL best practice follows same principles as non image URLs (not too many files and so on) - I notice alot of web devs putting photos in subdomains, so wonder if I'm missing something (I usually avoid subdomains like the plague)!
Intermediate & Advanced SEO | | McTaggart1 -
Indexed Pages in Google, How do I find Out?
Is there a way to get a list of pages that google has indexed? Is there some software that can do this? I do not have access to webmaster tools, so hoping there is another way to do this. Would be great if I could also see if the indexed page is a 404 or other Thanks for your help, sorry if its basic question 😞
Intermediate & Advanced SEO | | JohnPeters0 -
Soft 404's from pages blocked by robots.txt -- cause for concern?
We're seeing soft 404 errors appear in our google webmaster tools section on pages that are blocked by robots.txt (our search result pages). Should we be concerned? Is there anything we can do about this?
Intermediate & Advanced SEO | | nicole.healthline4 -
Using 2 wildcards in the robots.txt file
I have a URL string which I don't want to be indexed. it includes the characters _Q1 ni the middle of the string. So in the robots.txt can I use 2 wildcards in the string to take out all of the URLs with that in it? So something like /_Q1. Will that pickup and block every URL with those characters in the string? Also, this is not directly of the root, but in a secondary directory, so .com/.../_Q1. So do I have to format the robots.txt as //_Q1* as it will be in the second folder or just using /_Q1 will pickup everything no matter what folder it is on? Thanks.
Intermediate & Advanced SEO | | seo1234560 -
Should you stop indexing of short lived pages?
In my site there will be a lot of pages that have a short life span of about a week as they are items on sale, should I nofollow the links meaning the site has a fwe hundred pages or allow indexing and have thousands but then have lots of links to pages that do not exist. I would of course if allowing indexing make sure the page links does not error and sends them to a similarly relevant page but which is best for me with the SEarch Engines? I would like to have the option of loads of links with pages of loads of content but not if it is detrimental Thanks
Intermediate & Advanced SEO | | barney30120