技术 SEO 与抓取索引
共 141 篇文章
-
hreflang points to a 301 or 404: how to audit and fix language mappings
How to audit hreflang URLs that redirect or 404, check reciprocity and valid language/region codes, and fix the mapping without breaking other versions.
-
Google chose a different canonical: how to find the real cause
When Google chooses a different canonical, follow the evidence: URL Inspection, technical signals, clustering, and the two-week re-evaluation.
-
Bulk-checking an old-URL export: 404s, 301 chains and final URLs
A reproducible way to take an exported list of old URLs and check every HTTP status, redirect chain and final landing page, with a local fixture you can run.
-
Search Console sitemap errors: couldn't fetch, temporary processing and read-with-errors
Tell apart a sitemap that can't be fetched, a temporary processing error and a sitemap read with errors, and fix each without spamming resubmits.
-
Google Trends requests failing with 429 or empty data: how to diagnose it
Tell apart a 429, an empty response and 'not enough data', understand why the private endpoints break, and fix requests with supported tools.
-
新闻稿授权转载前后：原始出处、索引约定与更正安排
授权转载前说清原稿链接、图片许可、索引安排与更正联系人；分开处理独立报道与复制稿，不把canonical当作排名保护开关。
-
参数里的±是什么意思？单位、公差和测量不确定度别混写
解释产品规格中数值属性、单位、对称公差和测量不确定度的不同含义，给出明确标注的算术示例与字段核对方法，不推导实际产品合格结果。
-
抓取量下滑先看哪儿？用GSC主机状态区分DNS、连接与robots问题
GSC抓取量下滑时，先用主机状态区分DNS、连接与robots.txt获取问题。识别根级资源、实际请求URL、资源请求和有限示例，整理可追查时间线，不把抓取次数当作独立收录页面数。
-
Sitemap“已发现网页”如何对账：索引文件和子地图别重复相加
Sitemap已发现网页是解析后的URL数量，不等于收录数。通过父子地图与重叠URL的假设集合示例，说明去重、读取时间、两期变化集合和收录比例分母应怎样核对。
-
访问日志有记录，GSC页面却零点击：先查canonical归属
实际访问URL、页面声明canonical和Google选择的规范URL可能不同。按URL检查的索引记录核对GSC点击归属，区分实时测试、日志请求与搜索点击，避免为报表零值贸然修改全站标签。
