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.
Empty Meta Robots Directive - Harmful?
-
Hi,
We had a coding update and a side-effect of that was that our directive was emptied, in other words it now reads as:
on all of the site.
I've since noticed that Google's cache date on all of the pages - at least, the ones I tested - have a Cached date of no later than 17 December '12 - that's the Monday after the directive was removed on mass.
So, A, does anyone have solid evidence of an empty directive causing problems? Past experience, Matt Cutts, Fishkin quote, etc.
And then B - It seems fairly well correlated but, does my entire site's homogenous Cached date point to this tag removal? Or is it fairly normal to have a particular cache date across a large site (we're a large ecommerce site).
Our site: http://www.zando.co.za/
I'm having the directive reinstated as soon as Dev permitting.
And then, for extra credit, is there a way with Google's API, or perhaps some other tool, to run an arbitrary list and retrieve Cached dates? I'd want to do this for diagnosis purposes and preferably in a way that OK with Google. I'd avoid CURLing for the cached URL and scraping out that dates with BASH, or any such kind of thing.
Cheers,
-
Can't answer the API question I'm afraid.
However on the other bits - if you don't specify robots directive, search engines are likely to behave in the default manner - i.e. index, follow unless you're blocking them another way (i.e. robots.txt)
A good test of this would be if you've launched a page since the 17th and it's not in Google's index and you know you've been crawled.
Check in GWT for your crawl data - and don't worry about the cache because your users will always be taken to the current version of your site. It's only a concern if you're no longer being crawled.
If it's an ecommerce site, then it should just be one site-wide tweak to put index,follow back in. Re-create and re-submit your sitemap.xml to GWT then Google will go after all your new content as well - i.e. it hurries up re-crawling.
Hoping something helped you there

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
-
Meta Description for ALL my Posts is Being Overwritten!
Every single one of my posts meta descriptions are being overritten with the same meta description! I use Yoast and have proper meta descriptions in my posts, but something seems to be overriding them. https://ibb.co/rcgWNXb Any idea what could be causing this? Thank you!!! Mike
Technical SEO | | naturalsociety1 -
Site Hack In Meta Description
Hey MOZ Community, I am looking for some help in identifying where the following meta description is coming from on this home page - https://www.apins.com. I have scrubbed through the page source without being able to locate where the content is being pulled from. The website is built on WordPress and metas were updated using Yoast, but I am wondering if an installed plugin could be the culprit. On top of this, I have had a developer take a look for the "hack" and they have assured that the issue has been removed. I have submitted the URL in GSC a couple of times to be re-indexed but have not had much luck. Any thoughts would be much appreciated, the displayed description is below. The health screening plays http://buyviagraonlineccm.com/ a significant and key role in detecting potentially life-threatening illnesses such as cancer, heart ...
Technical SEO | | jordankremer0 -
If you use canonicals do the meta descriptions need to be different?
For example, we have 3 different subsites with the same pages. We will put canonicals so they reference the main pages. Do the meta descriptions have to be different for each of the three pages? How does Google handle meta data when using canonicals?
Technical SEO | | Shirley.Fenlason0 -
What to do with temporary empty pages?
I have a website listing real estate in different areas that are for sale. In small villages, towns, and areas, sometimes there is nothing for sale and therefore the page is completely empty with no content except a and some footer text. I have thousand of landing pages for different areas. For example "Apartments in Tibro" or "Houses in Ljusdahl" and Moz Pro gives me some warnings for "Duplicate Content" on the empty ones (I think it does so because the pages are so empty that they are quite similar). I guess Google could also think bad of my site if I have hundreds or thousands of empty pages even if my total amount of pages are 100,000. So, what to do with these pages for these small cities, towns and villages where there is not always houses for sale? Should I remove them completely? Should I make a 404 when no houses for sale and a 200 OK when there is? Please note that I have totally 100,000+ pages and this is only about 5% of all my pages.
Technical SEO | | marcuslind900 -
Robots.txt Sitemap with Relative Path
Hi Everyone, In robots.txt, can the sitemap be indicated with a relative path? I'm trying to roll out a robots file to ~200 websites, and they all have the same relative path for a sitemap but each is hosted on its own domain. Basically I'm trying to avoid needing to create 200 different robots.txt files just to change the domain. If I do need to do that, though, is there an easier way than just trudging through it?
Technical SEO | | MRCSearch0 -
Why "title missing or empty" when title tag exists?
Greetings! On Dec 1, 2011 in a SEOMoz campaign, two crawl metrics shot up from zero (Nov 17, Nov 24). "Title missing or empty" was 9,676. "Duplicate page content" was 9,678. Whoa! Content at site has not changed. I checked a sample of web pages and each seems to have a proper TITLE tag. Page content differs as well -- albeit we list electronic part numbers of hard-to-find parts, which look similar. I found a similar post http://www.seomoz.org/q/why-crawl-error-title-missing-or-empty-when-there-is-already-title-and-meta-desciption-in-place . In answer, Sha ran Screaming Frog crawler. I ran Frog crawler on a few hundred pages. Titles were found and hash codes were unique. Hmmm. Site with errors is http://electronics1.usbid.com Small sample of pages with errors: electronics1.usbid.com/catalog_10.html
Technical SEO | | groovykarma
electronics1.usbid.com/catalog_100.html
electronics1.usbid.com/catalog_1000.html I've tried to reproduce errors yet I cannot. What am I missing please? Thanks kindly, Loren0 -
Robots.txt file getting a 500 error - is this a problem?
Hello all! While doing some routine health checks on a few of our client sites, I spotted that a new client of ours - who's website was not designed built by us - is returning a 500 internal server error when I try to look at the robots.txt file. As we don't host / maintain their site, I would have to go through their head office to get this changed, which isn't a problem but I just wanted to check whether this error will actually be having a negative effect on their site / whether there's a benefit to getting this changed? Thanks in advance!
Technical SEO | | themegroup0 -
Use of Meta Tag - MSSmartTagsPreventParsing
We've inherited some sites from another developer that had the following tag: All references I can find to it are from 2004. What is the purpose and is it worth including in pages/sites we build?
Technical SEO | | wcksmith0