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.
Is "last modified" time in XML Sitemaps important?
-
My Tech lead is concerned that his use of a script to generate XML sitemaps for some client sites may be causing negative issues for those sites.
His concern centers around the fact that the script generates a sitemap which indicates that every URL page in the site was last modified at the exact same date and time. I have never heard anything to indicate that this might be a problem, but I do know that the sitemaps I generate for other client sites can choose server response or not.
What is the best way to generate the sitemap? Last mod from actual time modified, or all set at one date and time?
-
Glad to be of help Sha
-
Thanks Alan,
I will continue to use the server response setting when generating other sitemaps and recommend that our Techs ditch the home grown script that assigns the single date and time in future.
II must say also, it is great to have such clear and reliable advice - very glad to have you around!
Thanks again.
-
Sitemap.xml files are one of many "hints" search engines use to evaluate, classify and otherwise associate relevance, importance and freshness of individual pages, and in turn, an entire site.
When the entire file flags every page with the same date/time it can have a negative impact, purely from the single-point signal perspective. If the actual pages themselves have different date/time stamps at the HTML code level, those would counter the sitemap.xml file reporting, and either resolve it or just cause confusion.
Any time search engines have a potential conflict that needs to be resolved, the potential for less than maximum value exists.
Because of these combined potential problems, SEO best practices dictate that this issue be resolved, so as to ensure it does not, in fact, lead to problems, however minor they might be on a per-page basis. If resolving the issue takes an extensive amount of time, an evaluation of how important the issue is to overall SEO. At a certain point, you cross into the realm of diminishing returns.
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 my "spam" site affect my other sites on the same IP?
I have a link directory called Liberty Resource Directory. It's the main site on my dedicated IP, all my other sites are Addon domains on top of it. While exploring the new MOZ spam ranking I saw that LRD (Liberty Resource Directory) has a spam score of 9/17 and that Google penalizes 71% of sites with a similar score. Fair enough, thin content, bunch of follow links (there's over 2,000 links by now), no problem. That site isn't for Google, it's for me. Question, does that site (and linking to my own sites on it) negatively affect my other sites on the same IP? If so, by how much? Does a simple noindex fix that potential issues? Bonus: How does one go about going through hundreds of pages with thousands of links, built with raw, plain text HTML to change things to nofollow? =/
Technical SEO | | eglove0 -
Sitemap indexed pages dropping
About a month ago I noticed my pages indexed from my sitemap are dropping.There are 134 pages in my sitemap and only 11 are indexed. It used to be 117 pages and just died off quickly. I still seem to be getting consistant search traffic but I'm just not sure whats causing this. There are no warnings or manual actions required in GWT that I can find.
Technical SEO | | zenstorageunits0 -
Magento Dublicate Content (Noindex and Rel"canonical")
Hi All, Just looking for some advice regarding my website on magento. We by mistake didnt enable canonical tags and noindex tags so had a big problem with dublicate content from filter pages but also have URLs to Cats as Yes so this didnt help with not having canonical tags enabled. We now have everything enabled for a few weeks now but dont see much drop in indexed pages in google. (currently 27k and we have only 5k products) My question basically is how do we speed up noindexation of dublicate content and also would you change URL to cats as No so google just now sees the url to products? (my concerns with this is would leaving it to Yes help because it will hopefully read the canonical tags on products now) Thank you in advance Michael
Technical SEO | | TogetherCare0 -
Will an XML sitemap override a robots.txt
I have a client that has a robots.txt file that is blocking an entire subdomain, entirely by accident. Their original solution, not realizing the robots.txt error, was to submit an xml sitemap to get their pages indexed. I did not think this tactic would work, as the robots.txt would take precedent over the xmls sitemap. But it worked... I have no explanation as to how or why. Does anyone have an answer to this? or any experience with a website that has had a clear Disallow: / for months , that somehow has pages in the index?
Technical SEO | | KCBackofen0 -
NoIndex/NoFollow pages showing up when doing a Google search using "Site:" parameter
We recently launched a beta version of our new website in a subdomain of our existing site. The existing site is www.fonts.com with the beta living at new.fonts.com. We do not want Google to crawl the new site until it's out of beta so we have added the following on all pages: However, one of our team members noticed that google is displaying results from new.fonts.com when doing an "site:new.fonts.com" search (see attached screenshot). Is it possible that Google is indexing the content despite the noindex, nofollow tags? We have double checked the syntax and it seems correct except the trailing "/". I know Google still crawls noindexed pages, however, the fact that they're showing up in search results using the site search syntax is unsettling. Any thoughts would be appreciated! DyWRP.png
Technical SEO | | ChrisRoberts-MTI0 -
Rel="external"
Hi all, I got a link and its off a site and marked up with rel="external". Is this a followed or nofollowed link? Does it pass link juice? Thanks
Technical SEO | | Sharer0 -
Best XML Sitemap generator
Do you guys have any suggestions on a good XML Sitemaps generator? hopefully free, but if it's good i'd consider paying I am using a MAC so would prefer a online or mac version
Technical SEO | | kevin48030 -
Should XML sitemaps include *all* pages or just the deeper ones?
Hi guys, Ok this is a bit of a sitemap 101 question but I cant find a definitive answer: When we're running out XML sitemaps for google to chew on (we're talking ecommerce and directory sites with many pages inside sub-categories here) is there any point in mentioning the homepage or even the second level pages? We know google is crawling and indexing those and we're thinking we should trim the fat and just send a map of the bottom level pages. What do you think?
Technical SEO | | timwills0