200 Top SEO Ranking Factors May 2026

TOP SEO Factors for 2026-05 previous

Top SEO Factor data is updated daily for latest "month to date" measurements.

	Name	Correlation	#1 Max	Page 1 Avg	Usage %	Searches %
1	Number of Unique LSI Words Used Diversity	-0.23	975	284	81 %	75 %
2	Search Result Domain is .com, .net, or .org Other	-0.22	1	1	6 %	82 %
3	Load Time Milliseconds Performance	-0.22	29874	1455	82 %	93 %
4	Number of Top 200 Shared Factors Used Diversity	-0.22	51	36	96 %	93 %
5	Number of Top 100 Shared Factors Used Diversity	-0.22	38	27	96 %	94 %
6	Search Result Domain is .com Other	-0.22	1	1	6 %	82 %
7	Number of Top 50 Shared Factors Used Diversity	-0.22	16	11	95 %	92 %
8	Variations in H1, H2, and H3 Tags Relevancy	-0.2	378	7	54 %	88 %
9	Number of Unique Variations Used Diversity	-0.2	20	6	72 %	89 %
10	Variations in H1-H6 Tags Relevancy	-0.2	409	8	54 %	88 %
11	Variations in H1 and H2 Tags Relevancy	-0.2	287	5	52 %	88 %
12	Variations in Div Tags Relevancy	-0.19	68329	386	65 %	91 %
13	Variations in P Tags Relevancy	-0.19	4557	56	56 %	91 %
14	Word Count Size	-0.19	6928	1452	82 %	92 %
15	Unabridged Word Count Size	-0.19	10152	1859	82 %	92 %
16	Number of Referring Domains Authority	-0.19	3169	129	46 %	78 %
17	Number of Heading Tags Size	-0.19	49	20	68 %	89 %
18	Number of P Tags Size	-0.19	123	38	67 %	89 %
19	Clean Text Kilobytes Size	-0.19	67	13	68 %	91 %
20	Number of Backlinks Authority	-0.19	382197	8295	46 %	78 %
21	Variations in LI Tags Relevancy	-0.18	15771	56	54 %	88 %
22	Variations in Body Tags Relevancy	-0.18	93621	561	71 %	89 %
23	Number of Factors Used Diversity	-0.18	272	168	96 %	90 %
24	Number of Images Size	-0.18	309	27	68 %	91 %
25	Number of H2 Tags Size	-0.18	23	7	61 %	89 %
26	Number of Distinct Entities Used Diversity	-0.18	61	25	70 %	95 %
27	Variations in HTML Tags Relevancy	-0.18	93621	551	69 %	91 %
28	Number of H1 Tags Size	-0.18	3	1	64 %	91 %
29	Variations in Search Result Document File Name Relevancy	-0.18	8	1	38 %	85 %
30	Number of HTML Tags Size	-0.18	2805	986	81 %	91 %
31	Number of Do Follow Backlinks Authority	-0.18	377721	7099	42 %	78 %
32	Variations in H1 Tags Relevancy	-0.18	20	1	46 %	84 %
33	Variations in H2 Tags Relevancy	-0.18	280	4	40 %	86 %
34	Entities in Sentences Relevancy	-0.18	1308	126	59 %	95 %
35	Entities in Title Tag Relevancy	-0.18	7	3	58 %	93 %
36	Number of Images with ALT Text Size	-0.18	304	19	62 %	89 %
37	Entities in the HTML Tag Relevancy	-0.18	1436	128	64 %	95 %
38	Entities in H2 Tags	-0.18	46	6	45 %	94 %
39	Number of No Follow Backlinks Authority	-0.18	97499	1464	34 %	72 %
40	Entities in H1 Tags	-0.17	5	2	45 %	91 %
41	Leading Variations in H1, H2, and H3 Tags Relevancy	-0.17	32	2	36 %	84 %
42	Variation Count in Top 30KB Relevancy	-0.17	4928	41	57 %	87 %
43	Number of HTTPS Links Authority	-0.17	720	129	74 %	89 %
44	Number of DoFollow Links Authority	-0.17	717	127	75 %	89 %
45	Number of Links Authority	-0.17	721	130	74 %	90 %
46	Leading Variations in H1-H6 Tags Relevancy	-0.17	36	2	38 %	86 %
47	Number of Internal Links Authority	-0.17	703	117	73 %	89 %
48	Term Frequency Relevancy	-0.17	6	3	69 %	88 %
49	Search Result Number of Dirs in Path Other	-0.17	3	2	73 %	81 %
50	Variations in A Tags Relevancy	-0.17	9305	55	55 %	87 %
51	Variations in Sentences Relevancy	-0.17	8372	77	63 %	89 %
52	Variations in Search Result Link Text Relevancy	-0.17	19	2	72 %	77 %
53	Variations in Search Result Display URL Relevancy	-0.17	19	2	72 %	77 %
54	Variations in Search Result URL Path Relevancy	-0.17	10	1	40 %	85 %
55	Number of Includes Technology	-0.17	68	25	76 %	80 %
56	LSI Words in Sentences Relevancy	-0.17	2566	659	56 %	96 %
57	Number of H3 Tags Size	-0.16	26	8	54 %	85 %
58	Number of Facebook Pages Authority	-0.16	6	2	51 %	85 %
59	Average Words Per Sentence Size	-0.16	372	28	72 %	85 %
60	Variations in the Title Tag Relevancy	-0.16	23	2	57 %	83 %
61	Number of External Links Authority	-0.16	60	14	71 %	88 %
62	Entities in H3 Tags	-0.16	40	6	37 %	93 %
63	Number of DoFollow External Links Authority	-0.16	60	13	70 %	87 %
64	Has JSON-LD Schema Markup Relevancy	-0.16	1	1	48 %	82 %
65	Variations in Span Tags Relevancy	-0.16	1077	13	42 %	87 %
66	Number Of JSON-LD Types Relevancy	-0.16	63	13	51 %	84 %
67	Number of HTML Comments Size	-0.16	635	47	64 %	88 %
68	Number of Images without ALT Text Size	-0.16	34	9	51 %	88 %
69	Variations in A Tag HREF Attributes Relevancy	-0.16	2876	45	49 %	88 %
70	Variations in Main Tags Relevancy	-0.16	40166	208	34 %	87 %
71	Has Meta Charset Technology	-0.16	1	1	68 %	85 %
72	Variations in Distinct A Tag HREF Attributes Relevancy	-0.15	1808	29	49 %	88 %
73	LSI Words in H2 Tags Relevancy	-0.15	91	18	46 %	93 %
74	Variations in the Canonical URL Relevancy	-0.15	50	2	41 %	83 %
75	Variations in ALT Attributes Relevancy	-0.15	588	7	36 %	85 %
76	Has Entities in H1 Tags Relevancy	-0.15	1	1	46 %	88 %
77	Flesch Kincaid Reading Grade Level Other	-0.15	6	1	91 %	86 %
78	Variations in Search Result URL Relevancy	-0.15	21	2	49 %	81 %
79	Leading Variations in H1 Tags Relevancy	-0.15	2	1	24 %	79 %
80	Number of Sentences Size	-0.15	673	146	78 %	86 %
81	Has Entities in H2 Tags Relevancy	-0.15	1	1	45 %	89 %
82	LSI Words in H1 Tags Relevancy	-0.15	10	4	47 %	94 %
83	Variations in Absolute URLs Relevancy	-0.15	14393	118	52 %	89 %
84	Exact Matches in the HTML Tag Relevancy	-0.15	301	11	29 %	87 %
85	Variations in H3 Tags Relevancy	-0.15	123	3	31 %	83 %
86	Variations in First 100 Words Relevancy	-0.15	177	6	55 %	84 %
87	Variations in Section Tags Relevancy	-0.15	1250	22	32 %	89 %
88	Number of Forms Technology	-0.15	10	2	44 %	81 %
89	Variations in OpenGraph Title Relevancy	-0.15	16	1	49 %	78 %
90	Number of Questions In Headings Size	-0.15	7	2	34 %	84 %
91	Variations in Meta Description Relevancy	-0.15	49	2	49 %	80 %
92	Number of LinkedIn Pages Authority	-0.15	8	1	28 %	79 %
93	Number of CSS Includes Technology	-0.15	22	9	69 %	78 %
94	Number of US Phone Numbers Trust	-0.15	249	9	34 %	82 %
95	Leading Variations in Title Tag Relevancy	-0.15	1	1	27 %	79 %
96	Number of Instagram Pages Authority	-0.15	23	2	39 %	78 %
97	Variations in Script Tags Relevancy	-0.15	52712	285	57 %	86 %
98	Variations in Nav Tags Relevancy	-0.15	7034	68	40 %	84 %
99	Percentage of DoFollow Links Authority	-0.14	99	79	75 %	89 %
100	Number of JavaScript Includes Technology	-0.14	46	17	76 %	78 %
101	Clean Keyword Density in the HTML Tag Relevancy	-0.14	203	5	61 %	74 %
102	Percentage of DoFollow Internal Links Authority	-0.14	92	68	73 %	84 %
103	Search Result Host Length Size	-0.14	27	16	81 %	80 %
104	Search Result Domain Length Size	-0.14	27	16	81 %	80 %
105	Uses JSON-LD name Other	-0.14	1	1	47 %	80 %
106	Variations in OpenGraph Description Relevancy	-0.14	45	2	44 %	77 %
107	Percentage of DoFollow External Links Authority	-0.14	25	12	69 %	81 %
108	Number of Social Pages Authority	-0.14	25	4	58 %	83 %
109	Entities in Meta Description Tag Relevancy	-0.14	19	3	51 %	89 %
110	Has US Phone Number Trust	-0.14	1	1	35 %	75 %
111	Number of Facebook Accounts Authority	-0.14	2	1	24 %	80 %
112	Has Privacy Policy Trust	-0.14	1	1	55 %	73 %
113	Number of Social Accounts Authority	-0.14	8	2	36 %	83 %
114	LSI Words in Title Tag Relevancy	-0.14	15	5	59 %	90 %
115	Variation Density in Top 30KB Relevancy	-0.14	310	5	54 %	78 %
116	Has Form Technology	-0.14	1	1	44 %	78 %
117	Exact Matches in H1-H6 Tags Relevancy	-0.14	10	1	18 %	85 %
118	Search Result Uses HTTPS Other	-0.14	1	1	81 %	85 %
119	Headings Has Question Other	-0.14	1	1	35 %	80 %
120	TF/IDF Relevancy	-0.14	2	1	51 %	85 %
121	Leading Variations in H2 Tags Relevancy	-0.14	22	1	19 %	83 %
122	Inline CSS Kilobytes Size	-0.14	189	59	63 %	86 %
123	LSI Words in H3 Tags Relevancy	-0.14	97	19	40 %	91 %
124	Number of H4 Tags Size	-0.13	23	4	31 %	83 %
125	Has Meta Viewport Technology	-0.13	1	1	78 %	80 %
126	Variations making whole H1-H6 Tags Relevancy	-0.13	3	1	12 %	78 %
127	Uses JSON-LD url Other	-0.13	1	1	44 %	80 %
128	Is Home Page Other	-0.13	1	1	16 %	42 %
129	Variations making whole H1, H2, and H3 Tags Relevancy	-0.13	3	1	11 %	77 %
130	Number of Questions In H2 Tags Size	-0.13	4	1	22 %	81 %
131	Has Entities in H3 Tags Relevancy	-0.13	1	1	38 %	86 %
132	Has Canonical URL Authority	-0.13	1	1	67 %	74 %
133	Number of Questions Size	-0.13	247	15	63 %	77 %
134	Uses Schema organization Other	-0.13	1	1	31 %	75 %
135	Title Tag Has Entities Relevancy	-0.13	1	1	58 %	85 %
136	Number of Twitter Accounts Authority	-0.13	5	1	19 %	74 %
137	Number of Absolute URLs Authority	-0.13	872	264	80 %	79 %
138	Title Length Size	-0.13	124	51	79 %	73 %
139	Variations in Strong Tags Relevancy	-0.13	289	3	22 %	81 %
140	LSI Words in Meta Description Tag Relevancy	-0.13	23	9	49 %	90 %
141	Number Of Claimed Brands Other	-0.13	60	2	22 %	81 %
142	Is Article Page Other	-0.13	1	1	39 %	72 %
143	Title Word Count Size	-0.13	28	8	79 %	73 %
144	Uses JSON-LD description Other	-0.13	1	1	38 %	76 %
145	Number of Prices Size	-0.13	565	99	65 %	80 %
146	Variations in Footer Tags Relevancy	-0.13	6817	29	31 %	84 %
147	Uses JSON-LD Organization Other	-0.13	1	1	28 %	76 %
148	Uses JSON-LD ListItem Other	-0.13	1	1	31 %	77 %
149	Page Size Kilobytes Size	-0.13	804	331	80 %	72 %
150	Exact Matches in Top 30KB Relevancy	-0.13	14	2	17 %	83 %
151	Has Terms of Service Trust	-0.13	1	1	39 %	65 %
152	Meta Description Length Size	-0.13	456	116	64 %	76 %
153	Search Result URL Length Size	-0.13	96	63	95 %	61 %
154	Exact Matches in Sentences Relevancy	-0.13	37	3	20 %	88 %
155	Number of Questions In H3 Tags Size	-0.13	4	1	17 %	80 %
156	Uses JSON-LD BreadcrumbList Other	-0.12	1	1	30 %	77 %
157	Has Meta Robots Other	-0.12	1	1	24 %	74 %
158	Word Count in Meta Description Size	-0.12	65	19	64 %	77 %
159	Has Apple Touch Icon Technology	-0.12	1	1	46 %	73 %
160	Variations Making Whole Span Tags Relevancy	-0.12	5	1	16 %	83 %
161	Number of H5 Tags Size	-0.12	9	2	15 %	77 %
162	Has Contact Page Trust	-0.12	1	1	57 %	70 %
163	Entities in H4 Tags	-0.12	21	2	16 %	88 %
164	Has Schema Markup Relevancy	-0.12	1	1	60 %	71 %
165	Has Google Verify Technology	-0.12	1	1	18 %	72 %
166	Exact Matches in Title Tag Relevancy	-0.12	1	1	16 %	82 %
167	Search Result Summary Length Size	-0.12	163	152	96 %	68 %
168	Inline JavaScript Kilobytes Size	-0.12	534	136	75 %	63 %
169	Has HREF Lang Technology	-0.12	1	1	14 %	69 %
170	Is OpenGraph Type Article Technology	-0.12	1	1	29 %	64 %
171	Variations making whole A Tags Relevancy	-0.12	115	2	23 %	80 %
172	Has OpenGraph Type Relevancy	-0.12	1	1	59 %	72 %
173	Number of HREF Lang Tags Size	-0.12	46	2	12 %	77 %
174	Number of Email Addresses Trust	-0.12	53	4	38 %	80 %
175	Variations Making Whole LI Tags Relevancy	-0.12	7	1	18 %	81 %
176	Variations in I Tags Relevancy	-0.12	568	5	17 %	78 %
177	Uses Schema logo Other	-0.12	1	1	12 %	65 %
178	Has Meta Description Relevancy	-0.12	1	1	63 %	73 %
179	Uses JSON-LD logo Other	-0.12	1	1	11 %	66 %
180	Has OpenGraph Image Relevancy	-0.12	1	1	52 %	70 %
181	Uses Schema addresslocality Other	-0.12	1	1	16 %	63 %
182	Uses JSON-LD Answer Other	-0.12	1	1	9 %	66 %
183	Uses JSON-LD Question Other	-0.12	1	1	9 %	66 %
184	Number of Nofollow Links Authority	-0.12	18	3	21 %	79 %
185	Uses JSON-LD FAQPage Other	-0.12	1	1	9 %	65 %
186	Uses Schema product Other	-0.12	1	1	8 %	48 %
187	Uses Schema name Other	-0.12	1	1	57 %	70 %
188	Uses JSON-LD streetAddress Other	-0.12	1	1	15 %	63 %
189	Uses Schema answer Other	-0.12	1	1	10 %	67 %
190	Uses Schema faqpage Other	-0.12	1	1	10 %	66 %
191	Uses Schema postaladdress Other	-0.12	1	1	16 %	63 %
192	Uses JSON-LD datePublished Other	-0.12	1	1	32 %	67 %
193	Uses Schema question Other	-0.12	1	1	10 %	67 %
194	Uses Schema postalcode Other	-0.12	1	1	15 %	63 %
195	Uses Schema streetaddress Other	-0.12	1	1	15 %	62 %
196	Variations in Button Tags Relevancy	-0.12	5433	24	10 %	83 %
197	Uses Schema aggregaterating Other	-0.12	1	1	8 %	63 %
198	Uses JSON-LD addressLocality Other	-0.12	1	1	15 %	64 %
199	Uses JSON-LD postalCode Other	-0.12	1	1	15 %	63 %
200	Uses JSON-LD Product Other	-0.12	1	1	7 %	49 %

Measures 150672 SEO Factors

148950 Built-In SEO Factors

139748 On-page SEO Factors

9202 Google Maps SEO Factors for Local SEO

1722 SEO Factors from APIs

147 API SEO Factors for off-page SEO like backlinks and referring domains.

1575 Technology Stack SEO Factors

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TOP SEO Factors for 2026-05 previous