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How Do I Generate a Sitemap for a Large Wordpress Site?
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Hello Everyone!
I am working with a Wordpress site that is in Google news (i.e. everyday we have about 30 new URLs to add to our sitemap) The site has years of articles, resulting in about 200,000 pages on the site. Our strategy so far has been use a sitemap plugin that only generates the last few months of posts, however we want to improve our SEO and submit all the URLs in our site to search engines.
The issue is the plugins we've looked at generate the sitemap on-the-fly. i.e. when you request the sitemap, the plugin then dynamically generates the sitemap. Our site is so large that even a single request for our sitemap.xml ties up tons of server resources and takes an extremely long time to generate the sitemap (if the page doesn't time out in the process).
Does anyone have a solution?
Thanks,
Aaron
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In my case, xml-sitempas works extremely good. I fully understand that a DB solution would avoid the crawl need, but the features that I get from xml-sitemaps are worth it.
I am running my website on a powerful dedicated server with SSDs, so perhaps that's why I'm not getting any problems plus I set limitations on the generator memory consumption and activated the feature that saves temp files just in case the generation fails.
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My concern with recommending xml-sitemaps was that I've always had problems getting good, complete maps of extremely large sites. An internal CMS-based tool is grabbing pages straight from the database instead of having to crawl for them.
You've found that it gets you a pretty complete crawl of your 5K-page site, Federico?
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I would go with the paid solution of xml-sitemaps.
You can set all the resources that you want it to have available, and it will store in temp files to avoid excessive consumption.
It also offers settings to create large sitemaps using a sitemap_index and you could get plugins that create the news sitemap automatically looking for changes since the last sitemap generation.
I have it running in my site with 5K pages (excluding tag pages) and it takes 10 minutes to crawl.
Then you also have plugins that create the sitemaps dynamically, like SEO by Yoast, Google XML Sitemaps, etc.
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I think the solution to your server resource issue is to create multiple sitemaps, Aaron. Given that the sitemap protocol only allows 50,000 URLs max. per sitemap and Google News sitemaps can't be over 1000 URLs, this was going to be a necessity anyway, so may as well use these limitations to your advantage.
There's a functionality available for sitemaps called a sitemap index. It basically lists all the sitemap.xmls you've created, so the search engines can find and index them. You put it at the root of the site and then link to it in robots.txt just like a regular sitemap. (Can also submit it in GWT). In fact, Yoast's SEO plugin sitemaps and others use just this functionality already for their News add-on.
In your case, you could build the News sitemap dynamically to meet its special requirements (up to 1000 URLs and will crawl only last 2 days of posts) and to ensure it's up-to-the-minute accurate, as is critical for news sites.
Then separately you would build additional, segmented sitemaps for the existing 200,000 pages. Since these are historical pages, you could easily serve them from static files, since they wouldn't need to update once created. By having them static, there's be no server load to serve them each time - only the load to generate the current news sitemap. (I'd actually recommend you keep each static sitemap to around 25,000 pages each to ensure search engines can crawl them easily)
This approach would involve a bit of fiddling to initially set up, as you'd need to generate the "archive" sitemaps then convert them to static versions, but once set up, the News sitemap would take care of itself and once a month (or whatever you decide) you'd need to add the "expiring" pages from the News sitemap to the most recent "archive" segment. A smart programmer might even be able to automate that process.
Does this approach sound like it might solve your problem?
Paul
P.S. Since you'd already have the sitemap index capability, you could also add video and image sitemaps to your site if appropriate.
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Have you ever tried using a web-based sitemap generator? Not sure how it would respond to your site but at least it would be running on someone else's server, right?
Not sure what else to say honestly.
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