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 important are sitemap errors?
-
If there aren't any crawling / indexing issues with your site, how important do thing sitemap errors are? Do you work to always fix all errors?
I know here: http://www.seomoz.org/blog/bings-duane-forrester-on-webmaster-tools-metrics-and-sitemap-quality-thresholds
Duane Forrester mentions that sites with many 302's 301's will be punished--does any one know Googe's take on this?
-
Very important. Particularly if you have a large site. We operate a large site with 100,000's of pages and as Dan said it can be difficult to maintain. We use something called Unlimited XML Sitemap Generator which builds XML sitemaps for us automatically. I'd highly recommend it although it takes a bit of fiddling with to get it up and running as it's software which sits on site. We couldn't manage without it as we'd be forever on sitemaps.
We found that getting sitemaps right on a large site made a huge difference to the crawl rate that we encountered in GWT and a huge indexation to follow.
In particular check for 302's. I made the mistake of leaving those for a while and am sure that we suffered from some loss of link equity along the way.
Hope it helps
Dawn
-
Your sitemap should only list pages that actually exist.
If you delete some pages, then you need to rebuild the sitemap.
Ditto if you delete them and redirect.
Google is always lagging, so if you delete 10 pages and then update the sitemap, even if google downloads the sitemap immediately, they will still be running crawls on the old map, and they may be crawling the now-missing pages, but haven't shown the failures in your WMT yet.
If you update your sitemap quickly, it is possible they will never crawl the missing pages and get a 404 or 301.
(but of course, there could be other sites pointing to the now-missing pages, and the 404s will show up elsewhere as missing)
I am always checking, adding, deleting and redirecting pages, and I update the current sitemap every hour and all the others are rebuilt at midnight every night. I usually do deletions just before midnight if I can, to minimize the time the sitemap is out of sync.
-
As far as I know Google is more lenient with sitemap errors, but I would still recommend looking into it. The first step would be to be sure your sitemap is up to date to begin with - and has all the URLs you want (and not any you don't want). The main thing is none of them should 404 and then beyond that, yes, they should return 200's.
Unless you're dealing with a gigantic site which might be hard to maintain, in theory there shouldn't be errors in sitemaps if you have the correct URLs in there.
Even better, if you're running WordPress the Yoast SEO plugin will generate an XML sitemap for you and it update automatically.
Hope that helps!
-Dan
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
-
Href lang in image or video XML sitemaps
Does anyone know if it is possible/recommended/not recommended to use href lang in image or video XML sitemaps? This had not crossed my mind until recently, but a client asked me this question and I couldn't find any information on this topic.
Intermediate & Advanced SEO | | ChrisKing0 -
Google News Sitemap in Different Languages
Thought I'd ask this question to confirm what I already think. I'm curious that if we're publishing something in two language and both are verified by the publishing center if the group would recommend publishing two separate Google News Sitemaps (one in each language) or publishing one in each language.
Intermediate & Advanced SEO | | mattdinbrooklyn0 -
Should I redirect my xml sitemap?
Hi Mozzers, We have recently rebranded with a new company name, and of course this necessitated us to relaunch our entire website onto a new domain. I watched the Moz video on how they changed domain, copying what they did pretty much to the letter. (Thank you, Moz for sharing this with the community!) It has gone incredibly smoothly. I told all my bosses that we may see a 40% reduction in traffic / conversions in the short term. In the event (and its still very early days) we have in fact seen a 15% increase in traffic and our new website is converting better than before so an all-round success! I was just wondering if you thought I should redirect my XML sitemap as well? So far I haven't, but despite us doing the change of address thing in webmaster tools, I can see Google processed the old sitemap xml after we did the change of address etc. What do you think? I know we've been very lucky with the outcome of this rebrand but I don't want to rest on my laurels or get tripped up later down the line. Thanks everyone! Amelia
Intermediate & Advanced SEO | | CommT0 -
Google Not Indexing XML Sitemap Images
Hi Mozzers, We are having an issue with our XML sitemap images not being indexed. The site has over 39,000 pages and 17,500 images submitted in GWT. If you take a look at the attached screenshot, 'GWT Images - Not Indexed', you can see that the majority of the pages are being indexed - but none of the images are. The first thing you should know about the images is that they are hosted on a content delivery network (CDN), rather than on the site itself. However, Google advice suggests hosting on a CDN is fine - see second screenshot, 'Google CDN Advice'. That advice says to either (i) ensure the hosting site is verified in GWT or (ii) submit in robots.txt. As we can't verify the hosting site in GWT, we had opted to submit via robots.txt. There are 3 sitemap indexes: 1) http://www.greenplantswap.co.uk/sitemap_index.xml, 2) http://www.greenplantswap.co.uk/sitemap/plant_genera/listings.xml and 3) http://www.greenplantswap.co.uk/sitemap/plant_genera/plants.xml. Each sitemap index is split up into often hundreds or thousands of smaller XML sitemaps. This is necessary due to the size of the site and how we have decided to pull URLs in. Essentially, if we did it another way, it may have involved some of the sitemaps being massive and thus taking upwards of a minute to load. To give you an idea of what is being submitted to Google in one of the sitemaps, please see view-source:http://www.greenplantswap.co.uk/sitemap/plant_genera/4/listings.xml?page=1. Originally, the images were SSL, so we decided to reverted to non-SSL URLs as that was an easy change. But over a week later, that seems to have had no impact. The image URLs are ugly... but should this prevent them from being indexed? The strange thing is that a very small number of images have been indexed - see http://goo.gl/P8GMn. I don't know if this is an anomaly or whether it suggests no issue with how the images have been set up - thus, there may be another issue. Sorry for the long message but I would be extremely grateful for any insight into this. I have tried to offer as much information as I can, however please do let me know if this is not enough. Thank you for taking the time to read and help. Regards, Mark Oz6HzKO rYD3ICZ
Intermediate & Advanced SEO | | edlondon0 -
Bing flags multiple H1's as an issue of high importance--any case studies?
Going through Bing's SEO Analyzer and found that Bing thinks having multiple H1's on a page is an issue. It's going to be quite a bit of work to remove the H1 tags from various pages. Do you think this is a major issue or not? Does anyone know of any case studies / interviews to show that fixing this will lead to improvement?
Intermediate & Advanced SEO | | nicole.healthline0 -
XML Sitemap Index Percentage (Large Sites)
Hi all I'm wanting to find out from those who have experience dealing with large sites (10s/100s of millions of pages). What's a typical (or highest) percentage of indexed pages vs. submitted pages you've seen? This information can be found in webmaster tools where Google shows you the pages submitted & indexed for each of your sitemap. I'm trying to figure out whether, The average index % out there There is a ceiling (i.e. will never reach 100%) It's possible to improve the indexing percentage further Just to give you some background, sitemap index files (according to schema.org) have been implemented to improve crawl efficiency and I'm wanting to find out other ways to improve this further. I've been thinking about looking at the URL parameters to exclude as there are hundreds (e-commerce site) to help Google improve crawl efficiency and utilise the daily crawl quote more effectively to discover pages that have not been discovered yet. However, I'm not sure yet whether this is the best path to take or I'm just flogging a dead horse if there is such a ceiling or if I'm already at the average ballpark for large sites. Any suggestions/insights would be appreciated. Thanks.
Intermediate & Advanced SEO | | danng0 -
Sitemap in SERPS
What's up guys, Having some troubles with SERP rankings. My sitemap (navigation) is appearing instead of my actual keywords. I have tried a few methods to fix this; setting a preferred domain, using a 301 redirects, deleting out of date pages via Google webmaster tools. Nothing seems to work. My next step was to refresh the cache for my entire site - does anyone know how to do this? Can't see any tools... Any help would be great. Cheers, Jon.
Intermediate & Advanced SEO | | jamesjk240 -
Create a new XML Sitemap for a blog subdomain?
What would be the best way to go about this? A site just put a blog on http://blog.domain.com/ Should there be a separate XML Sitemap for that particular subdomain or should the original XML Sitemap for the main domain be sufficient? Looking forward to your responses. Thanks
Intermediate & Advanced SEO | | iAnalyst.com0