التردد كل ساعه لصفحات عرض المواضيع لا تعمل لأن التردد الذكى فعال ( وهذا من حسن الحظ ) :funny:ويرجى ملاحظة ان التردد كل ساعة غير دقيق ويعتبر مخادع لمحركات البحث لأن محتويات صفحة المواضيع فى المعتاد لا تتغير كل ساعة
من موقع بروتوكول خريطة الموقع يرجى قراءة هذا الجزء sitemaps.org
How frequently the page is likely to change. This value provides general information to search engines and may not correlate exactly to how often they crawl the page. Valid values are:
- always
- hourly
- daily
- weekly
- monthly
- yearly
- never
The value "always" should be used to describe documents that change each time they are accessed. The value "never" should be used to describe archived URLs.
Please note that the value of this tag is considered a
hint and not a command. Even though search engine crawlers may consider this information when making decisions, they may crawl pages marked "hourly" less frequently than that, and they may crawl pages marked "yearly" more frequently than that. Crawlers may periodically crawl pages marked "never" so that they can handle unexpected changes to those pages.