SEO 工程08/11/2026
CSS 装饰层如何优化关键词密度:从 12 个重复水印文本节点到干净的三词组报告
某视频工具页的目标三词组已经覆盖标题、正文、FAQ 和 CTA,却被演示水印生成的重复文本压过。本文记录如何把 12 个平铺水印节点改成 CSS 伪元素或 SVG 装饰层,在不增加目标词次数、不改变视觉效果的前提下清理统计噪声,并补充无障碍边界、复测方法和关键词密度前后数据。
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API key requests containing only single-domain and/or batch WHOIS access are now approved and issued automatically when the limit is no more than 5 domains per request and exactly 100 requests per day. Traffic lookup, keyword research, and other quota combinations still require manual review.