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
-
Link rel="prev" AND canonical
Hi guys, When you have several tabs on your website with products, you can most likely navigate to page 2, 3, 4 etc...
Technical SEO | | AdenaSEO
You can add the link rel="prev" and link rel="next" tags to make sure that 1 page get's indexed / ranked by Google. am I correct? However this still means that all the pages can get indexed, right? For example a webshop makes use of the link rel="prev" and ="next" tags. In the Google results page though, all the seperate tabs pages are still visible/indexed..
http://www.domain.nl/watches/?tab=1
http://www.domain.nl/watches/?tab=24
http://www.domain.nl/watches/?tab=19
etc..... Can we prevent this, and make sure only the main page get's indexed and ranked, by adding a canonical link on every 'tab page' to the main page --> www.domain.nl/watches/ I hope I explained it well and I'm looking forward to hearing from you. Regards, Tom1 -
What is the difference between "Referring Pages" and "Total Backlinks" [on Ahrefs]?
I always thought they were essentially the same thing myself but appears there may be a difference? Any one care to help me out? Cheers!
Technical SEO | | Webrevolve0 -
New "Static" Site with 302s
Hey all, Came across a bit of an interesting challenge recently, one that I was hoping some of you might have had experience with! We're currently in the process of a website rebuild, for which I'm really excited. The new site is using Markdown to create an entirely static site. Load-times are fantastic, and the code is clean. Life is good, apart from the 302s. One of the weird quirks I've realized is that with oldschool, non-server-generated page content is that every page of the site is an Index.html file in a directory. The resulting in a www.website.com/page-title will 302 to www.website.com/page-title/. My solution off the bat has been to just be super diligent and try to stay on top of the link profile and send lots of helpful emails to the staff reminding them about how to build links, but I know that even the best laid plans often fail. Has anyone had a similar challenge with a static site and found a way to overcome it?
Technical SEO | | danny.wood1 -
Rel="Follow"? What the &#@? does that mean?
I've written a guest blog post for a site. In the link back to my site they've put a rel="follow" attribute. Is that valid HTML? I've Googled it but the answers are inconclusive, to say the least.
Technical SEO | | Jeepster0 -
Wordpress "incoming search terms" plugin
Hello everyone! newbie to SEO and have been trying to keep everything nice and ethical but I've seen on a couple of blogs today "incoming search terms" at the bottom of the blogs, then a bullet pointed list of search terms beneath it. So I had a quick search about the use of it and noticed wordpress has a plugin that automatic ally generates these "incoming search terms". I ask is this a legitimate plugin or will this harm my blog? I assume it generally will as I can't see this being much use for the audience, rather it would be 100% for trying to lure in search engines.
Technical SEO | | acecream0 -
Should we use "and" or "&"?
Our client has an ampersand in their brand name. The logo has "&", their url is spelled out. I'm trying to get them to standardize the use of the name for directories/listings. Should we use "and" or "&"?
Technical SEO | | vernonmack0 -
XML Sitemap without PHP
Is it possible to generate an XML sitemap for a site without PHP? If so, how?
Technical SEO | | jeffreytrull11 -
301 Redirect "wildcard" question
I have been looking at the SEOmoz redirect guide for some advice but I can't seem to find the answer : http://www.seomoz.org/learn-seo/redirection I have lots of URLs from a previous version of a site that look like the following: sitename.com/-c-25.html?sort=2d&page=1 sitename.com/-c-25.html?sort=3a&page=1 etc etc. I want to write a redirect so whenever a URL with the terms "-c-25.html" is requested it redirects to a specified page, regardless of what comes after the question mark. These URLs were created by our previous ecommerce software. The 'c' is for category, and each page of the cateogry created a different URL. I want to do these so I can rediect all of these URLs to the appropraite new cateogry page in a single redirect. Thanks for any help.
Technical SEO | | craigycraig0