This page provides information about the usage of the W3C Validator project, including summaries across all versions and details for each release. For each week beginning on the given date the figures show the number of sites that reported they are using a given version of the project.

W3C Validator project page
Usage statistics for all projects

Show legacy data
Week starting 8.x-1.x 2.0.x 2.1.x Total
June 14th, 2026 253 37 286 576
June 7th, 2026 272 40 284 596
May 31st, 2026 257 39 298 594
May 24th, 2026 249 43 281 573
May 17th, 2026 260 40 303 603
May 10th, 2026 258 37 292 587
May 3rd, 2026 252 41 278 571
April 26th, 2026 259 38 268 565
April 19th, 2026 264 36 278 578
April 12th, 2026 275 43 277 595
April 5th, 2026 267 39 290 596
March 29th, 2026 271 42 264 577
March 22nd, 2026 272 44 264 580
March 15th, 2026 267 40 277 584
March 8th, 2026 267 41 253 561
February 22nd, 2026 277 39 251 567
February 15th, 2026 262 37 243 542
February 8th, 2026 268 39 247 554
February 1st, 2026 268 45 276 589
January 25th, 2026 275 44 260 579
January 18th, 2026 274 42 246 562
January 11th, 2026 275 48 257 580
January 4th, 2026 280 47 255 582
December 28th, 2025 283 41 231 555
December 21st, 2025 289 45 231 565
December 14th, 2025 304 51 250 605
December 7th, 2025 288 45 253 586
November 30th, 2025 291 44 263 598
November 23rd, 2025 292 37 250 579
November 16th, 2025 292 38 240 570
November 9th, 2025 292 54 254 600
November 2nd, 2025 285 55 236 576
October 26th, 2025 297 66 243 606
October 19th, 2025 299 65 224 588
October 12th, 2025 296 68 234 598
October 5th, 2025 289 61 236 586
September 28th, 2025 295 67 213 575
September 21st, 2025 303 85 239 627
September 14th, 2025 299 67 221 587
September 7th, 2025 303 70 212 585
August 31st, 2025 315 71 224 610
August 24th, 2025 307 63 230 600
August 17th, 2025 299 67 216 582
August 10th, 2025 287 67 224 578
August 3rd, 2025 291 73 216 580
July 27th, 2025 310 65 220 595
July 20th, 2025 297 68 225 590
July 13th, 2025 325 68 215 608
July 6th, 2025 300 75 200 575
June 29th, 2025 306 70 201 577
June 22nd, 2025 293 73 212 578
June 15th, 2025 315 70 210 595
June 8th, 2025 309 69 220 598
June 1st, 2025 308 75 217 600
May 25th, 2025 326 81 223 630
May 18th, 2025 324 78 214 616
May 11th, 2025 325 76 212 613
May 4th, 2025 331 81 197 609
April 27th, 2025 327 80 190 597
April 20th, 2025 335 86 194 615
April 13th, 2025 336 81 189 606
April 6th, 2025 325 92 204 621
March 30th, 2025 311 86 180 577
March 23rd, 2025 338 82 189 609
March 16th, 2025 327 84 195 606
March 9th, 2025 328 80 188 596
March 2nd, 2025 339 78 195 612
February 23rd, 2025 337 93 196 626
February 16th, 2025 342 89 207 638
February 9th, 2025 334 91 188 613
February 2nd, 2025 335 92 191 618
January 26th, 2025 342 91 197 630
January 19th, 2025 332 96 170 598
January 12th, 2025 345 103 179 627
January 5th, 2025 334 112 179 625
December 29th, 2024 326 109 141 576
December 22nd, 2024 333 113 132 578
December 15th, 2024 333 120 153 606
December 8th, 2024 351 127 140 618
December 1st, 2024 337 151 140 628
November 24th, 2024 344 173 104 621
November 17th, 2024 348 191 90 629
November 10th, 2024 363 181 95 639
November 3rd, 2024 374 181 91 646
October 27th, 2024 357 178 78 613
October 20th, 2024 352 205 58 615
October 13th, 2024 369 214 55 638
October 6th, 2024 370 229 29 628
September 29th, 2024 359 244 0 603
September 22nd, 2024 369 230 0 599
September 15th, 2024 372 241 0 613
September 8th, 2024 382 233 0 615
September 1st, 2024 404 226 0 630
August 25th, 2024 389 234 0 623
August 18th, 2024 395 256 0 651
August 11th, 2024 390 221 0 611
August 4th, 2024 392 235 0 627
July 28th, 2024 388 221 0 609
July 21st, 2024 395 228 0 623
July 14th, 2024 355 228 0 583
July 7th, 2024 296 207 0 503
June 30th, 2024 412 238 0 650
June 23rd, 2024 407 219 0 626
June 16th, 2024 407 209 0 616
June 9th, 2024 426 222 0 648
June 2nd, 2024 416 234 0 650
May 26th, 2024 454 224 0 678
May 19th, 2024 429 193 0 622
May 12th, 2024 461 191 0 652
May 5th, 2024 453 167 0 620
April 28th, 2024 477 152 0 629
April 21st, 2024 474 151 0 625
April 14th, 2024 505 162 0 667
April 7th, 2024 492 145 0 637
March 31st, 2024 516 158 0 674
March 24th, 2024 532 150 0 682
March 17th, 2024 531 147 0 678
March 10th, 2024 539 147 0 686
March 3rd, 2024 525 139 0 664
February 25th, 2024 573 137 0 710
February 18th, 2024 544 129 0 673
February 11th, 2024 551 135 0 686
February 4th, 2024 622 135 0 757
January 28th, 2024 598 124 0 722
January 21st, 2024 588 116 0 704
January 14th, 2024 567 119 0 686
January 7th, 2024 592 115 0 707
December 31st, 2023 587 103 0 690
December 24th, 2023 545 91 0 636
December 17th, 2023 569 95 0 664
December 10th, 2023 591 99 0 690
December 3rd, 2023 608 96 0 704
November 26th, 2023 615 89 0 704
November 19th, 2023 627 81 0 708
November 12th, 2023 627 70 0 697
November 5th, 2023 644 67 0 711
October 29th, 2023 643 58 0 701
October 22nd, 2023 660 44 0 704
October 15th, 2023 649 27 0 676
October 8th, 2023 685 35 0 720
October 1st, 2023 647 32 0 679
September 24th, 2023 675 26 0 701
September 17th, 2023 678 18 0 696
September 10th, 2023 700 15 0 715
September 3rd, 2023 681 16 0 697
August 27th, 2023 677 14 0 691
August 20th, 2023 672 11 0 683
August 13th, 2023 683 13 0 696
August 6th, 2023 729 7 0 736
July 30th, 2023 659 5 0 664
July 23rd, 2023 704 8 0 712
July 16th, 2023 687 0 0 687
July 9th, 2023 692 0 0 692
July 2nd, 2023 735 0 0 735
June 25th, 2023 714 0 0 714
June 18th, 2023 694 0 0 694
June 11th, 2023 711 0 0 711
June 4th, 2023 798 0 0 798
May 28th, 2023 818 0 0 818
May 21st, 2023 826 0 0 826
May 14th, 2023 825 0 0 825
May 7th, 2023 804 0 0 804
April 30th, 2023 817 0 0 817
April 23rd, 2023 821 0 0 821
April 16th, 2023 825 0 0 825
April 9th, 2023 776 0 0 776
April 2nd, 2023 881 0 0 881
March 26th, 2023 870 0 0 870
March 19th, 2023 886 0 0 886
March 12th, 2023 865 0 0 865
March 5th, 2023 882 0 0 882
February 26th, 2023 894 0 0 894
February 19th, 2023 810 0 0 810
February 12th, 2023 843 0 0 843
February 5th, 2023 927 0 0 927
January 29th, 2023 922 0 0 922
January 22nd, 2023 874 0 0 874
January 15th, 2023 895 0 0 895
January 8th, 2023 898 0 0 898
January 1st, 2023 783 0 0 783
December 25th, 2022 830 0 0 830
December 18th, 2022 886 0 0 886
December 11th, 2022 885 0 0 885
December 4th, 2022 888 0 0 888
November 27th, 2022 883 0 0 883
November 20th, 2022 883 0 0 883
November 13th, 2022 898 0 0 898
November 6th, 2022 909 0 0 909
October 30th, 2022 905 0 0 905
October 23rd, 2022 896 0 0 896
October 16th, 2022 887 0 0 887
October 9th, 2022 920 0 0 920
October 2nd, 2022 893 0 0 893
September 25th, 2022 880 0 0 880
September 18th, 2022 898 0 0 898
September 11th, 2022 840 0 0 840
September 4th, 2022 877 0 0 877
August 28th, 2022 877 0 0 877
August 21st, 2022 860 0 0 860
August 14th, 2022 830 0 0 830
August 7th, 2022 853 0 0 853
July 31st, 2022 867 0 0 867
July 24th, 2022 866 0 0 866
July 17th, 2022 882 0 0 882
July 10th, 2022 869 0 0 869
July 3rd, 2022 865 0 0 865
June 26th, 2022 871 0 0 871
June 19th, 2022 835 0 0 835
June 12th, 2022 885 0 0 885
June 5th, 2022 851 0 0 851
May 29th, 2022 877 0 0 877
May 22nd, 2022 913 0 0 913
May 15th, 2022 898 0 0 898
May 8th, 2022 894 0 0 894
May 1st, 2022 858 0 0 858
April 24th, 2022 855 0 0 855
April 17th, 2022 862 0 0 862
April 10th, 2022 878 0 0 878
April 3rd, 2022 883 0 0 883
March 27th, 2022 865 0 0 865
March 20th, 2022 858 0 0 858
March 13th, 2022 866 0 0 866
March 6th, 2022 840 0 0 840
February 27th, 2022 744 0 0 744
February 20th, 2022 874 0 0 874
February 13th, 2022 848 0 0 848
February 6th, 2022 847 0 0 847
January 30th, 2022 872 0 0 872
January 23rd, 2022 903 0 0 903
January 16th, 2022 879 0 0 879
January 9th, 2022 857 0 0 857
January 2nd, 2022 836 0 0 836
December 26th, 2021 748 0 0 748
December 19th, 2021 787 0 0 787
December 12th, 2021 832 0 0 832
December 5th, 2021 840 0 0 840
November 28th, 2021 890 0 0 890
November 21st, 2021 850 0 0 850
November 14th, 2021 849 0 0 849
November 7th, 2021 841 0 0 841
October 31st, 2021 815 0 0 815
October 24th, 2021 817 0 0 817
October 17th, 2021 824 0 0 824
October 10th, 2021 847 0 0 847
October 3rd, 2021 873 0 0 873
September 26th, 2021 838 0 0 838
September 19th, 2021 830 0 0 830
September 12th, 2021 799 0 0 799
September 5th, 2021 750 0 0 750
August 29th, 2021 818 0 0 818
August 22nd, 2021 787 0 0 787
August 15th, 2021 781 0 0 781
August 8th, 2021 818 0 0 818
August 1st, 2021 732 0 0 732
July 25th, 2021 722 0 0 722
July 18th, 2021 740 0 0 740
July 11th, 2021 765 0 0 765
July 4th, 2021 707 0 0 707
June 27th, 2021 739 0 0 739
June 20th, 2021 723 0 0 723
June 13th, 2021 747 0 0 747
June 6th, 2021 727 0 0 727
May 30th, 2021 754 0 0 754
May 23rd, 2021 757 0 0 757
May 16th, 2021 813 0 0 813
May 9th, 2021 804 0 0 804
May 2nd, 2021 795 0 0 795
April 25th, 2021 809 0 0 809
April 18th, 2021 772 0 0 772
April 11th, 2021 788 0 0 788
April 4th, 2021 764 0 0 764
March 28th, 2021 742 0 0 742
March 21st, 2021 767 0 0 767
March 14th, 2021 772 0 0 772
March 7th, 2021 751 0 0 751
February 28th, 2021 765 0 0 765
February 21st, 2021 744 0 0 744
February 14th, 2021 751 0 0 751
February 7th, 2021 744 0 0 744
January 31st, 2021 752 0 0 752
January 24th, 2021 748 0 0 748
January 17th, 2021 733 0 0 733
January 10th, 2021 749 0 0 749
January 3rd, 2021 680 0 0 680
December 27th, 2020 626 0 0 626
December 20th, 2020 633 0 0 633
December 13th, 2020 723 0 0 723
December 6th, 2020 715 0 0 715
November 29th, 2020 734 0 0 734
November 22nd, 2020 681 0 0 681
November 15th, 2020 714 0 0 714
November 8th, 2020 656 0 0 656
November 1st, 2020 682 0 0 682
October 25th, 2020 665 0 0 665
October 18th, 2020 667 0 0 667
October 11th, 2020 698 0 0 698
October 4th, 2020 720 0 0 720
September 27th, 2020 719 0 0 719
September 20th, 2020 687 0 0 687
September 13th, 2020 667 0 0 667
September 6th, 2020 698 0 0 698
August 30th, 2020 654 0 0 654
August 23rd, 2020 656 0 0 656
August 16th, 2020 662 0 0 662
August 9th, 2020 681 0 0 681
August 2nd, 2020 664 0 0 664
July 26th, 2020 656 0 0 656
July 19th, 2020 671 0 0 671
July 12th, 2020 672 0 0 672
July 5th, 2020 676 0 0 676
June 28th, 2020 679 0 0 679
June 21st, 2020 671 0 0 671
June 14th, 2020 708 0 0 708
June 7th, 2020 688 0 0 688
May 31st, 2020 683 0 0 683
May 24th, 2020 681 0 0 681
May 17th, 2020 642 0 0 642
May 10th, 2020 682 0 0 682
May 3rd, 2020 653 0 0 653
April 26th, 2020 663 0 0 663
April 19th, 2020 691 0 0 691
April 12th, 2020 695 0 0 695
April 5th, 2020 664 0 0 664
March 29th, 2020 670 0 0 670
March 22nd, 2020 671 0 0 671
March 15th, 2020 649 0 0 649
March 8th, 2020 654 0 0 654
March 1st, 2020 643 0 0 643
February 23rd, 2020 599 0 0 599
February 16th, 2020 602 0 0 602
February 9th, 2020 621 0 0 621
February 2nd, 2020 608 0 0 608
January 26th, 2020 619 0 0 619
January 19th, 2020 597 0 0 597
January 12th, 2020 618 0 0 618
January 5th, 2020 607 0 0 607
December 29th, 2019 566 0 0 566
December 22nd, 2019 538 0 0 538
December 15th, 2019 604 0 0 604
December 8th, 2019 593 0 0 593
December 1st, 2019 594 0 0 594
November 24th, 2019 592 0 0 592
November 17th, 2019 576 0 0 576
November 10th, 2019 575 0 0 575
November 3rd, 2019 582 0 0 582
October 27th, 2019 564 0 0 564
October 20th, 2019 588 0 0 588
October 13th, 2019 554 0 0 554
October 6th, 2019 565 0 0 565
September 29th, 2019 574 0 0 574
September 22nd, 2019 573 0 0 573
September 15th, 2019 568 0 0 568
September 8th, 2019 552 0 0 552
September 1st, 2019 556 0 0 556
August 25th, 2019 544 0 0 544
August 18th, 2019 558 0 0 558
August 11th, 2019 557 0 0 557
August 4th, 2019 558 0 0 558
July 28th, 2019 536 0 0 536
July 21st, 2019 544 0 0 544
July 14th, 2019 545 0 0 545
July 7th, 2019 543 0 0 543
June 30th, 2019 547 0 0 547
June 23rd, 2019 539 0 0 539
June 16th, 2019 545 0 0 545
June 9th, 2019 555 0 0 555
June 2nd, 2019 562 0 0 562
May 26th, 2019 555 0 0 555
May 19th, 2019 552 0 0 552
May 12th, 2019 564 0 0 564
May 5th, 2019 572 0 0 572
April 28th, 2019 584 0 0 584
April 21st, 2019 529 0 0 529
April 14th, 2019 566 0 0 566
April 7th, 2019 552 0 0 552
March 31st, 2019 520 0 0 520
March 24th, 2019 509 0 0 509
March 17th, 2019 512 0 0 512
March 10th, 2019 504 0 0 504
March 3rd, 2019 510 0 0 510
February 24th, 2019 524 0 0 524
February 17th, 2019 519 0 0 519
February 10th, 2019 472 0 0 472
February 3rd, 2019 476 0 0 476
January 27th, 2019 470 0 0 470
January 20th, 2019 463 0 0 463
January 13th, 2019 453 0 0 453
January 6th, 2019 444 0 0 444
December 30th, 2018 422 0 0 422
December 23rd, 2018 397 0 0 397
December 16th, 2018 430 0 0 430
December 9th, 2018 431 0 0 431
December 2nd, 2018 399 0 0 399
November 25th, 2018 400 0 0 400
November 18th, 2018 390 0 0 390
November 11th, 2018 437 0 0 437
November 4th, 2018 416 0 0 416
October 28th, 2018 425 0 0 425
October 21st, 2018 408 0 0 408
October 14th, 2018 419 0 0 419
October 7th, 2018 399 0 0 399
September 30th, 2018 375 0 0 375
September 23rd, 2018 382 0 0 382
September 16th, 2018 359 0 0 359
September 9th, 2018 370 0 0 370
September 2nd, 2018 371 0 0 371
August 26th, 2018 351 0 0 351
August 19th, 2018 333 0 0 333
August 12th, 2018 345 0 0 345
August 5th, 2018 364 0 0 364
July 29th, 2018 351 0 0 351
July 22nd, 2018 330 0 0 330
July 15th, 2018 299 0 0 299
July 8th, 2018 336 0 0 336
July 1st, 2018 299 0 0 299
June 24th, 2018 307 0 0 307
June 17th, 2018 309 0 0 309
June 10th, 2018 310 0 0 310
June 3rd, 2018 315 0 0 315
May 27th, 2018 326 0 0 326
May 20th, 2018 293 0 0 293
May 13th, 2018 293 0 0 293
May 6th, 2018 295 0 0 295
April 29th, 2018 284 0 0 284
April 22nd, 2018 286 0 0 286
April 15th, 2018 281 0 0 281
April 8th, 2018 276 0 0 276
April 1st, 2018 260 0 0 260
March 25th, 2018 273 0 0 273
March 18th, 2018 248 0 0 248
March 11th, 2018 244 0 0 244
March 4th, 2018 260 0 0 260
February 25th, 2018 249 0 0 249
February 18th, 2018 230 0 0 230
February 11th, 2018 244 0 0 244
February 4th, 2018 256 0 0 256
January 28th, 2018 234 0 0 234
January 21st, 2018 225 0 0 225
January 14th, 2018 222 0 0 222
January 7th, 2018 216 0 0 216
December 31st, 2017 212 0 0 212
December 24th, 2017 213 0 0 213
December 17th, 2017 209 0 0 209
December 10th, 2017 219 0 0 219
December 3rd, 2017 190 0 0 190
November 26th, 2017 204 0 0 204
November 19th, 2017 203 0 0 203
November 12th, 2017 197 0 0 197
November 5th, 2017 179 0 0 179
October 29th, 2017 182 0 0 182
October 22nd, 2017 183 0 0 183
October 15th, 2017 170 0 0 170
October 8th, 2017 160 0 0 160
October 1st, 2017 165 0 0 165
September 24th, 2017 168 0 0 168
September 17th, 2017 169 0 0 169
September 10th, 2017 182 0 0 182
September 3rd, 2017 169 0 0 169
August 27th, 2017 170 0 0 170
August 20th, 2017 145 0 0 145
August 13th, 2017 148 0 0 148
August 6th, 2017 157 0 0 157
July 30th, 2017 149 0 0 149
July 23rd, 2017 144 0 0 144
July 16th, 2017 145 0 0 145
July 9th, 2017 143 0 0 143
July 2nd, 2017 132 0 0 132
June 25th, 2017 158 0 0 158
June 18th, 2017 135 0 0 135
June 11th, 2017 146 0 0 146
June 4th, 2017 137 0 0 137
May 28th, 2017 135 0 0 135
May 21st, 2017 126 0 0 126
May 14th, 2017 134 0 0 134
May 7th, 2017 105 0 0 105
April 30th, 2017 91 0 0 91
April 23rd, 2017 90 0 0 90
April 16th, 2017 83 0 0 83
April 9th, 2017 87 0 0 87
April 2nd, 2017 86 0 0 86
March 26th, 2017 80 0 0 80
March 19th, 2017 89 0 0 89
March 12th, 2017 90 0 0 90
March 5th, 2017 87 0 0 87
February 26th, 2017 87 0 0 87
February 19th, 2017 76 0 0 76
February 12th, 2017 84 0 0 84
February 5th, 2017 76 0 0 76
January 29th, 2017 64 0 0 64
January 22nd, 2017 65 0 0 65
January 15th, 2017 58 0 0 58
January 8th, 2017 59 0 0 59
January 1st, 2017 43 0 0 43
December 25th, 2016 46 0 0 46
December 18th, 2016 55 0 0 55
December 11th, 2016 48 0 0 48
December 4th, 2016 45 0 0 45
November 27th, 2016 45 0 0 45
November 20th, 2016 44 0 0 44
November 13th, 2016 38 0 0 38
November 6th, 2016 38 0 0 38
October 30th, 2016 30 0 0 30
October 23rd, 2016 38 0 0 38
October 16th, 2016 34 0 0 34
October 9th, 2016 35 0 0 35
October 2nd, 2016 38 0 0 38
September 25th, 2016 24 0 0 24
September 18th, 2016 26 0 0 26
September 11th, 2016 21 0 0 21
September 4th, 2016 34 0 0 34
August 28th, 2016 32 0 0 32
August 21st, 2016 34 0 0 34
August 14th, 2016 21 0 0 21
August 7th, 2016 22 0 0 22
July 31st, 2016 16 0 0 16
July 24th, 2016 17 0 0 17
July 17th, 2016 15 0 0 15
July 10th, 2016 12 0 0 12
July 3rd, 2016 22 0 0 22
June 26th, 2016 20 0 0 20
June 19th, 2016 20 0 0 20
June 12th, 2016 12 0 0 12
June 5th, 2016 16 0 0 16
May 29th, 2016 14 0 0 14
May 22nd, 2016 11 0 0 11
May 15th, 2016 13 0 0 13
May 8th, 2016 19 0 0 19
May 1st, 2016 18 0 0 18
April 24th, 2016 11 0 0 11
April 17th, 2016 17 0 0 17
April 10th, 2016 17 0 0 17
April 3rd, 2016 14 0 0 14
March 27th, 2016 13 0 0 13
March 20th, 2016 15 0 0 15
March 13th, 2016 22 0 0 22
March 6th, 2016 16 0 0 16
February 28th, 2016 16 0 0 16
February 21st, 2016 20 0 0 20
February 14th, 2016 19 0 0 19
February 7th, 2016 16 0 0 16
January 31st, 2016 18 0 0 18
January 24th, 2016 20 0 0 20
January 17th, 2016 23 0 0 23
January 10th, 2016 19 0 0 19
January 3rd, 2016 16 0 0 16
December 27th, 2015 12 0 0 12
December 20th, 2015 14 0 0 14
December 13th, 2015 6 0 0 6
December 6th, 2015 4 0 0 4
November 29th, 2015 1 0 0 1
November 22nd, 2015 3 0 0 3
October 25th, 2015 2 0 0 2
October 18th, 2015 1 0 0 1
July 12th, 2015 1 0 0 1
May 10th, 2015 1 0 0 1

Recent release usage

Release June 14th, 2026 June 7th, 2026 May 31st, 2026 May 24th, 2026 May 17th, 2026 May 10th, 2026
6.x-1.2 7 7 6 8 8 7
7.x-1.0 9 9 9 10 10 8
8.x-1.3 47 47 46 43 45 45
8.x-1.4 206 225 211 206 215 213
2.0.1 37 40 39 43 40 37
2.1.0 286 284 298 281 303 292

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