For a site with tens of thousands of content, which parameter links are consuming crawling resources unnecessarily
A site with tens of thousands of articles, which parameter links are consuming crawling volume unnecessarily? The heaviest consumers are list pages with sorting parameters, category pages with filtering combinations, theoretically infinite pagination, and preview links that can be publicly accessed.The crawl budget itself is determined by two things, the definition in the industry guidelines is that Crawl budget is the limit on how many pages Googlebot will crawl, factors include server response speed and URL importance - if either willingness or ability is limited, repeated entries will displace the opportunity to crawl valid content.
Crawling volume is determined by two factors
One is the crawling intention: search engines decide how much quota to allocate based on the frequency of site updates, content importance, and response quality. The other is the bearing capacity: how many requests the server can respond to stably within a unit of time without slowing down or crashing.
The problem with large stations usually lies in the ratio of these two. After the content exceeds ten thousand, the same article may correspond to dozens of accessible URLs. The crawling program spends its quota on repeated entries, leaving no share for new content that truly needs to be discovered. At this point, adding more entries will not accelerate indexing, but will only dilute the quota.
Five common types of invalid entries
The first category is sorting parameters. The list page generates an address for sorting by time, popularity, and price, and the content collection is actually the same. The second category is filtering combination.Multiple filter options multiply to produce a combination explosion, most of which have no independent reading value. The third type is deep pagination. Users can keep flipping pages, and the program can keep up, with the last few pages having little independent content.The fourth category is the preview and draft link. If the preview URL with the 'preview' parameter is publicly accessible, it will be repeatedly crawled, and it belongs to the review link rather than public content.The fifth category is the in-site search results page, each query word generates an address, which is equivalent to creating an infinite page collection out of thin air.
When cleaning up, judge according to the line of 'whether there is independent reading value': Different entries of the same article should be merged, and only pages that can be opened and read should be worth keeping the address.
Which part do sitemap, link submission, and robots each manage?
These three things are often confused, actually with different divisions of labor. The sitemap is responsible for being discovered, letting the crawling program know which addresses are worth coming to; AnQiCMS's Sitemap automatically generates, updating official documents according to rules continuously, and the contents in drafts and recycle bins should not appear in it.The link push is responsible for accelerating inclusion, actively submitting to Baidu and Bing after new content is published, shortening the waiting time before being discovered, it manages speed rather than scope.The robots configuration is responsible for reducing invalid entries, excluding the sorting parameter page, search result page, and internal preview address, so that the quota is concentrated on the main content page.
The order should be as follows: first use robots and pseudo-static rules to converge the entry, then use the sitemap to provide a clean list, and finally use active push to handle increments. If done the other way around, the list will contain a large number of duplicate addresses, and pushing multiple times will only submit invalid entries repeatedly.
Pseudo-static rules have a direct effect here. If a piece of content has both static addresses and parameterized dynamic addresses, the rule layer should unify them into a standard form, and the rest is handed over to 301 redirect for guidance, rather than relying on the crawling program to guess which is the standard page.
How to check the effect after clearing the entries
Review should consider two directions. First, sampling: in the site's crawling records, has the proportion of parameter pages decreased, and has the proportion of categories and text pages increased? Second, coverage sample: has the difference between the number of submitted site maps and the actual number of indexed pages been narrowed?
The judgment cycle should be extended to cover several rounds of crawling, and daily fluctuations should not be considered as conclusions. A valid signal is the continuous decline in the proportion of repeated entry crawling while the total indexed volume does not decrease; an invalid signal is a decrease in the volume of indexing - that is mostly when pages with independent value are mistakenly excluded during cleaning, and the corresponding robots rules need to be rolled back.
Common questions
Would屏蔽所有参数页把有效内容也挡掉？Will, so first classify whether there is independent reading value, and then decide the exclusion range, do not cut the whole path in one go.
Do we need to deal with this issue for sites with a small amount of crawling?It is necessary, but the priority is low; when the content volume is small, the absolute consumption of repeated entry is limited, and first ensure that the site map and push are normal.
What should we do if there is no increase in inclusion after cleaning?Look at the content quality and internal link structure instead of continuing to clear the entry; crawling amount is just one of the limit conditions, and if the quota is sufficient but the inclusion does not increase, it is usually that the page itself lacks independent value.