| # | DR | Domain | Ref. domains | Backlinks | Dofollow |
|---|---|---|---|---|---|
| 1 | 82 | nih.gov | 971 392 | 366 527 674 | 342 138 215 |
| 2 | 78 | cdc.gov | 502 621 | 19 889 316 | 18 470 182 |
| 3 | 75 | ca.gov | 299 167 | 34 528 563 | 32 417 261 |
| 4 | 75 | privacyshield.gov | 275 872 | 2 594 607 | 2 448 281 |
| 5 | 73 | nasa.gov | 222 213 | 31 674 527 | 21 613 333 |
| 6 | 73 | epa.gov | 221 259 | 7 524 673 | 6 920 457 |
| 7 | 73 | usda.gov | 220 869 | 15 157 578 | 14 387 727 |
| 8 | 73 | fda.gov | 219 155 | 11 604 993 | 10 713 044 |
| 9 | 73 | dataprivacyframework.gov | 210 035 | 1 807 933 | 1 737 314 |
| 10 | 72 | irs.gov | 194 167 | 11 472 307 | 10 251 881 |
| 11 | 72 | whitehouse.gov | 170 351 | 12 996 118 | 12 555 140 |
| 12 | 72 | ftc.gov | 167 313 | 4 166 461 | 3 709 908 |
| 13 | 71 | nps.gov | 158 680 | 6 409 884 | 5 849 942 |
| 14 | 71 | state.gov | 150 840 | 6 044 858 | 5 556 353 |
| 15 | 71 | hhs.gov | 145 712 | 23 208 354 | 22 800 906 |
| 16 | 71 | bls.gov | 144 410 | 4 949 377 | 4 339 097 |
| 17 | 71 | noaa.gov | 140 574 | 26 512 202 | 25 467 995 |
| 18 | 70 | energy.gov | 128 101 | 6 941 126 | 6 692 904 |
| 19 | 70 | ed.gov | 127 740 | 7 471 863 | 7 146 626 |
| 20 | 70 | ny.gov | 123 798 | 7 611 644 | 7 040 510 |
| 21 | 70 | loc.gov | 122 539 | 17 755 000 | 11 772 619 |
| 22 | 70 | census.gov | 121 865 | 9 318 236 | 6 666 675 |
| 23 | 70 | house.gov | 121 668 | 8 562 866 | 8 017 707 |
| 24 | 69 | congress.gov | 118 564 | 7 567 246 | 7 245 203 |
| 25 | 69 | nist.gov | 112 791 | 10 171 621 | 9 006 705 |
| 26 | 69 | justice.gov | 109 785 | 12 283 545 | 11 974 605 |
| 27 | 69 | senate.gov | 109 247 | 4 826 340 | 4 417 529 |
| 28 | 69 | va.gov | 106 826 | 5 135 520 | 4 855 168 |
| 29 | 69 | sec.gov | 106 764 | 58 534 179 | 55 417 076 |
| 30 | 69 | medlineplus.gov | 106 531 | 3 288 316 | 2 861 658 |
| 31 | 69 | texas.gov | 102 742 | 19 189 897 | 18 191 087 |
| 32 | 68 | ssa.gov | 93 249 | 2 402 423 | 2 160 606 |
| 33 | 68 | dol.gov | 91 066 | 7 227 303 | 7 087 099 |
| 34 | 68 | usgs.gov | 89 994 | 6 349 106 | 5 797 838 |
| 35 | 68 | sba.gov | 86 540 | 2 326 501 | 2 122 989 |
| 36 | 68 | wa.gov | 85 214 | 6 782 841 | 6 534 370 |
| 37 | 67 | archives.gov | 83 974 | 4 572 665 | 4 039 712 |
| 38 | 67 | dot.gov | 83 836 | 6 365 471 | 5 434 029 |
| 39 | 67 | fcc.gov | 81 640 | 78 998 285 | 77 520 947 |
| 40 | 67 | osha.gov | 81 402 | 2 255 520 | 2 063 349 |
| 41 | 67 | cancer.gov | 79 712 | 3 488 921 | 3 172 972 |
| 42 | 67 | cms.gov | 78 839 | 3 505 918 | 3 339 037 |
| 43 | 67 | usa.gov | 76 752 | 34 248 921 | 34 011 820 |
| 44 | 67 | nyc.gov | 76 187 | 4 928 574 | 4 686 637 |
| 45 | 67 | treasury.gov | 75 739 | 2 844 298 | 2 645 519 |
| 46 | 67 | fbi.gov | 75 135 | 1 571 196 | 1 382 278 |
| 47 | 67 | fema.gov | 74 771 | 2 215 304 | 2 064 432 |
| 48 | 67 | weather.gov | 72 824 | 25 458 216 | 24 944 287 |
| 49 | 67 | dhs.gov | 72 687 | 2 474 477 | 2 364 483 |
| 50 | 66 | hud.gov | 69 698 | 5 987 387 | 4 600 657 |