esahubble.org 的自然流量、热门关键词、排名和 SEO 数据。
| # | 关键词 | 搜索量 | KD | CPC | 预计流量 | 排名 | 国家 |
|---|---|---|---|---|---|---|---|
| 1 | nebulae | 16,500 | 14 | N/A | 2,640 | 2 |  UK |
| 2 | orion nebula | 15,100 | 10 | N/A | 2,113 | 3 | UK |
| 3 | sombrero galaxy | 8,500 | 35 | $0.36 | 1,508 | 2 |  US |
| 4 | what is a nebula | 16,200 | 33 | N/A | 1,215 | 4 | US |
| 5 | what is a planetary nebula | 3,300 | 34 | N/A | 973 | 1 | US |
| 6 | what is a planetary nebula? | 2,800 | 33 | $0.00 | 826 | 1 | US |
| 7 | reflection nebula | 14,700 | 14 | $0.00 | 808 | 5 | UK |
| 8 | galaxy wallpaper wallpaper | 6,600 | 28 | $0.76 | 775 | 3 | US |
| 9 | galaxy images | 4,800 | 21 | $0.38 | 768 | 2 |  IN |
| 10 | neutron star | 7,000 | 22 | $0.00 | 735 | 3 | UK |
| 11 | galaxy wallpaper | 11,600 | 13 | $0.00 | 638 | 5 |  BR |
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